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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-01-13 11:28:06 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-01-13 11:28:06 +0100
commitb74a449f1a312d7d30c4738ead06c5751e5160f4 (patch)
treec364049eca1c6690bfac8197fe0f4c326a241ff0 /p04
parente89b7388846e2b8aa288676365671f7ab9b7cee7 (diff)
downloadpatches-b74a449f1a312d7d30c4738ead06c5751e5160f4.tar.gz
updated patches
Diffstat (limited to 'p04')
-rw-r--r--p04598
1 files changed, 598 insertions, 0 deletions
diff --git a/p04 b/p04
new file mode 100644
index 00000000000000..7208a194b16a1f
--- /dev/null
+++ b/p04
@@ -0,0 +1,598 @@
+From e82f2d8eab210dc7eb0dba2bd8e3c64ad485442b Mon Sep 17 00:00:00 2001
+From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Date: Wed, 30 May 2018 16:15:35 +0200
+Subject: [PATCH] powerpc: no need to check return value of debugfs_create functions
+
+When calling debugfs functions, there is no need to ever check the
+return value. The function can work or not, but the code logic should
+never do something different based on this.
+
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/powerpc/include/asm/kvm_host.h | 3 --
+ arch/powerpc/kernel/fadump.c | 9 +-----
+ arch/powerpc/kernel/setup-common.c | 3 --
+ arch/powerpc/kernel/traps.c | 27 ++++---------------
+ arch/powerpc/kvm/book3s_64_mmu_hv.c | 5 +--
+ arch/powerpc/kvm/book3s_64_mmu_radix.c | 5 +--
+ arch/powerpc/kvm/book3s_hv.c | 9 +-----
+ arch/powerpc/kvm/timing.c | 11 +-------
+ arch/powerpc/mm/dump_hashpagetable.c | 7 +----
+ arch/powerpc/mm/dump_linuxpagetables.c | 8 ++---
+ arch/powerpc/mm/hash_utils_64.c | 7 +----
+ arch/powerpc/platforms/4xx/ocm.c | 14 +---------
+ arch/powerpc/platforms/cell/axon_msi.c | 6 ----
+ arch/powerpc/platforms/powernv/memtrace.c | 7 -----
+ arch/powerpc/platforms/powernv/opal-imc.c | 28 +++++---------------
+ arch/powerpc/platforms/powernv/pci-ioda.c | 5 ---
+ arch/powerpc/platforms/powernv/vas-debug.c | 37 ++-------------------------
+ arch/powerpc/platforms/pseries/dtl.c | 36 +++-----------------------
+ arch/powerpc/platforms/pseries/hvCall_inst.c | 12 ++------
+ arch/powerpc/sysdev/scom.c | 8 -----
+ 20 files changed, 45 insertions(+), 202 deletions(-)
+
+--- a/arch/powerpc/include/asm/kvm_host.h
++++ b/arch/powerpc/include/asm/kvm_host.h
+@@ -293,8 +293,6 @@ struct kvm_arch {
+ pgd_t *pgtable;
+ u64 process_table;
+ struct dentry *debugfs_dir;
+- struct dentry *htab_dentry;
+- struct dentry *radix_dentry;
+ struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
+ #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
+ #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
+@@ -806,7 +804,6 @@ struct kvm_vcpu_arch {
+ struct kvmhv_tb_accumulator cede_time; /* time napping inside guest */
+
+ struct dentry *debugfs_dir;
+- struct dentry *debugfs_timings;
+ #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
+ };
+
+--- a/arch/powerpc/kernel/fadump.c
++++ b/arch/powerpc/kernel/fadump.c
+@@ -1649,7 +1649,6 @@ DEFINE_SHOW_ATTRIBUTE(fadump_region);
+
+ static void fadump_init_files(void)
+ {
+- struct dentry *debugfs_file;
+ int rc = 0;
+
+ rc = sysfs_create_file(kernel_kobj, &fadump_attr.attr);
+@@ -1662,12 +1661,8 @@ static void fadump_init_files(void)
+ printk(KERN_ERR "fadump: unable to create sysfs file"
+ " fadump_registered (%d)\n", rc);
+
+- debugfs_file = debugfs_create_file("fadump_region", 0444,
+- powerpc_debugfs_root, NULL,
+- &fadump_region_fops);
+- if (!debugfs_file)
+- printk(KERN_ERR "fadump: unable to create debugfs file"
+- " fadump_region\n");
++ debugfs_create_file("fadump_region", 0444, powerpc_debugfs_root, NULL,
++ &fadump_region_fops);
+
+ if (fw_dump.dump_active) {
+ rc = sysfs_create_file(kernel_kobj, &fadump_release_attr.attr);
+--- a/arch/powerpc/kernel/setup-common.c
++++ b/arch/powerpc/kernel/setup-common.c
+@@ -776,8 +776,7 @@ EXPORT_SYMBOL(powerpc_debugfs_root);
+ static int powerpc_debugfs_init(void)
+ {
+ powerpc_debugfs_root = debugfs_create_dir("powerpc", NULL);
+-
+- return powerpc_debugfs_root == NULL;
++ return 0;
+ }
+ arch_initcall(powerpc_debugfs_init);
+ #endif
+--- a/arch/powerpc/kernel/traps.c
++++ b/arch/powerpc/kernel/traps.c
+@@ -2173,35 +2173,20 @@ void ppc_warn_emulated_print(const char
+
+ static int __init ppc_warn_emulated_init(void)
+ {
+- struct dentry *dir, *d;
++ struct dentry *dir;
+ unsigned int i;
+ struct ppc_emulated_entry *entries = (void *)&ppc_emulated;
+
+- if (!powerpc_debugfs_root)
+- return -ENODEV;
+-
+ dir = debugfs_create_dir("emulated_instructions",
+ powerpc_debugfs_root);
+- if (!dir)
+- return -ENOMEM;
+
+- d = debugfs_create_u32("do_warn", 0644, dir,
+- &ppc_warn_emulated);
+- if (!d)
+- goto fail;
+-
+- for (i = 0; i < sizeof(ppc_emulated)/sizeof(*entries); i++) {
+- d = debugfs_create_u32(entries[i].name, 0644, dir,
+- (u32 *)&entries[i].val.counter);
+- if (!d)
+- goto fail;
+- }
++ debugfs_create_u32("do_warn", 0644, dir, &ppc_warn_emulated);
+
+- return 0;
++ for (i = 0; i < sizeof(ppc_emulated)/sizeof(*entries); i++)
++ debugfs_create_u32(entries[i].name, 0644, dir,
++ (u32 *)&entries[i].val.counter);
+
+-fail:
+- debugfs_remove_recursive(dir);
+- return -ENOMEM;
++ return 0;
+ }
+
+ device_initcall(ppc_warn_emulated_init);
+--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
++++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
+@@ -2142,9 +2142,8 @@ static const struct file_operations debu
+
+ void kvmppc_mmu_debugfs_init(struct kvm *kvm)
+ {
+- kvm->arch.htab_dentry = debugfs_create_file("htab", 0400,
+- kvm->arch.debugfs_dir, kvm,
+- &debugfs_htab_fops);
++ debugfs_create_file("htab", 0400, kvm->arch.debugfs_dir, kvm,
++ &debugfs_htab_fops);
+ }
+
+ void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu)
+--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
++++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
+@@ -1348,9 +1348,8 @@ static const struct file_operations debu
+
+ void kvmhv_radix_debugfs_init(struct kvm *kvm)
+ {
+- kvm->arch.radix_dentry = debugfs_create_file("radix", 0400,
+- kvm->arch.debugfs_dir, kvm,
+- &debugfs_radix_fops);
++ debugfs_create_file("radix", 0400, kvm->arch.debugfs_dir, kvm,
++ &debugfs_radix_fops);
+ }
+
+ int kvmppc_radix_init(void)
+--- a/arch/powerpc/kvm/book3s_hv.c
++++ b/arch/powerpc/kvm/book3s_hv.c
+@@ -2144,14 +2144,9 @@ static void debugfs_vcpu_init(struct kvm
+ struct kvm *kvm = vcpu->kvm;
+
+ snprintf(buf, sizeof(buf), "vcpu%u", id);
+- if (IS_ERR_OR_NULL(kvm->arch.debugfs_dir))
+- return;
+ vcpu->arch.debugfs_dir = debugfs_create_dir(buf, kvm->arch.debugfs_dir);
+- if (IS_ERR_OR_NULL(vcpu->arch.debugfs_dir))
+- return;
+- vcpu->arch.debugfs_timings =
+- debugfs_create_file("timings", 0444, vcpu->arch.debugfs_dir,
+- vcpu, &debugfs_timings_ops);
++ debugfs_create_file("timings", 0444, vcpu->arch.debugfs_dir, vcpu,
++ &debugfs_timings_ops);
+ }
+
+ #else /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
+--- a/arch/powerpc/kvm/timing.c
++++ b/arch/powerpc/kvm/timing.c
+@@ -218,19 +218,12 @@ static const struct file_operations kvmp
+ void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu, unsigned int id)
+ {
+ static char dbg_fname[50];
+- struct dentry *debugfs_file;
+
+ snprintf(dbg_fname, sizeof(dbg_fname), "vm%u_vcpu%u_timing",
+ current->pid, id);
+- debugfs_file = debugfs_create_file(dbg_fname, 0666,
+- kvm_debugfs_dir, vcpu,
+- &kvmppc_exit_timing_fops);
++ debugfs_create_file(dbg_fname, 0666, kvm_debugfs_dir, vcpu,
++ &kvmppc_exit_timing_fops);
+
+- if (!debugfs_file) {
+- printk(KERN_ERR"%s: error creating debugfs file %s\n",
+- __func__, dbg_fname);
+- return;
+- }
+
+ vcpu->arch.debugfs_exit_timing = debugfs_file;
+ }
+--- a/arch/powerpc/mm/dump_hashpagetable.c
++++ b/arch/powerpc/mm/dump_hashpagetable.c
+@@ -537,13 +537,10 @@ static const struct file_operations ptdu
+
+ static int ptdump_init(void)
+ {
+- struct dentry *debugfs_file;
+-
+ if (!radix_enabled()) {
+ populate_markers();
+- debugfs_file = debugfs_create_file("kernel_hash_pagetable",
+- 0400, NULL, NULL, &ptdump_fops);
+- return debugfs_file ? 0 : -ENOMEM;
++ debugfs_create_file("kernel_hash_pagetable", 0400, NULL, NULL,
++ &ptdump_fops);
+ }
+ return 0;
+ }
+--- a/arch/powerpc/mm/dump_linuxpagetables.c
++++ b/arch/powerpc/mm/dump_linuxpagetables.c
+@@ -362,12 +362,10 @@ static void build_pgtable_complete_mask(
+
+ static int ptdump_init(void)
+ {
+- struct dentry *debugfs_file;
+-
+ populate_markers();
+ build_pgtable_complete_mask();
+- debugfs_file = debugfs_create_file("kernel_page_tables", 0400, NULL,
+- NULL, &ptdump_fops);
+- return debugfs_file ? 0 : -ENOMEM;
++ debugfs_create_file("kernel_page_tables", 0400, NULL, NULL,
++ &ptdump_fops);
++ return 0;
+ }
+ device_initcall(ptdump_init);
+--- a/arch/powerpc/mm/hash_utils_64.c
++++ b/arch/powerpc/mm/hash_utils_64.c
+@@ -1893,11 +1893,8 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_hpt_order,
+
+ static int __init hash64_debugfs(void)
+ {
+- if (!debugfs_create_file("hpt_order", 0600, powerpc_debugfs_root,
+- NULL, &fops_hpt_order)) {
+- pr_err("lpar: unable to create hpt_order debugsfs file\n");
+- }
+-
++ debugfs_create_file("hpt_order", 0600, powerpc_debugfs_root, NULL,
++ &fops_hpt_order);
+ return 0;
+ }
+ machine_device_initcall(pseries, hash64_debugfs);
+--- a/arch/powerpc/platforms/4xx/ocm.c
++++ b/arch/powerpc/platforms/4xx/ocm.c
+@@ -280,22 +280,12 @@ static const struct file_operations ocm_
+ .release = single_release,
+ };
+
+-static int ocm_debugfs_init(void)
++static void ocm_debugfs_init(void)
+ {
+ struct dentry *junk;
+
+ junk = debugfs_create_dir("ppc4xx_ocm", 0);
+- if (!junk) {
+- printk(KERN_ALERT "debugfs ppc4xx ocm: failed to create dir\n");
+- return -1;
+- }
+-
+- if (debugfs_create_file("info", 0644, junk, NULL, &ocm_debugfs_fops)) {
+- printk(KERN_ALERT "debugfs ppc4xx ocm: failed to create file\n");
+- return -1;
+- }
+-
+- return 0;
++ debugfs_create_file("info", 0644, junk, NULL, &ocm_debugfs_fops);
+ }
+
+ void *ppc4xx_ocm_alloc(phys_addr_t *phys, int size, int align,
+--- a/arch/powerpc/platforms/cell/axon_msi.c
++++ b/arch/powerpc/platforms/cell/axon_msi.c
+@@ -484,10 +484,6 @@ void axon_msi_debug_setup(struct device_
+
+ snprintf(name, sizeof(name), "msic_%d", of_node_to_nid(dn));
+
+- if (!debugfs_create_file(name, 0600, powerpc_debugfs_root,
+- msic, &fops_msic)) {
+- pr_devel("axon_msi: debugfs_create_file failed!\n");
+- return;
+- }
++ debugfs_create_file(name, 0600, powerpc_debugfs_root, msic, &fops_msic);
+ }
+ #endif /* DEBUG */
+--- a/arch/powerpc/platforms/powernv/memtrace.c
++++ b/arch/powerpc/platforms/powernv/memtrace.c
+@@ -190,11 +190,6 @@ static int memtrace_init_debugfs(void)
+
+ snprintf(ent->name, 16, "%08x", ent->nid);
+ dir = debugfs_create_dir(ent->name, memtrace_debugfs_dir);
+- if (!dir) {
+- pr_err("Failed to create debugfs directory for node %d\n",
+- ent->nid);
+- return -1;
+- }
+
+ ent->dir = dir;
+ debugfs_create_file("trace", 0400, dir, ent, &memtrace_fops);
+@@ -318,8 +313,6 @@ static int memtrace_init(void)
+ {
+ memtrace_debugfs_dir = debugfs_create_dir("memtrace",
+ powerpc_debugfs_root);
+- if (!memtrace_debugfs_dir)
+- return -1;
+
+ debugfs_create_file("enable", 0600, memtrace_debugfs_dir,
+ NULL, &memtrace_init_fops);
+--- a/arch/powerpc/platforms/powernv/opal-imc.c
++++ b/arch/powerpc/platforms/powernv/opal-imc.c
+@@ -39,11 +39,10 @@ static int imc_mem_set(void *data, u64 v
+ }
+ DEFINE_DEBUGFS_ATTRIBUTE(fops_imc_x64, imc_mem_get, imc_mem_set, "0x%016llx\n");
+
+-static struct dentry *imc_debugfs_create_x64(const char *name, umode_t mode,
+- struct dentry *parent, u64 *value)
++static void imc_debugfs_create_x64(const char *name, umode_t mode,
++ struct dentry *parent, u64 *value)
+ {
+- return debugfs_create_file_unsafe(name, mode, parent,
+- value, &fops_imc_x64);
++ debugfs_create_file_unsafe(name, mode, parent, value, &fops_imc_x64);
+ }
+
+ /*
+@@ -63,13 +62,6 @@ static void export_imc_mode_and_cmd(stru
+
+ imc_debugfs_parent = debugfs_create_dir("imc", powerpc_debugfs_root);
+
+- /*
+- * Return here, either because 'imc' directory already exists,
+- * Or failed to create a new one.
+- */
+- if (!imc_debugfs_parent)
+- return;
+-
+ if (of_property_read_u32(node, "cb_offset", &cb_offset))
+ cb_offset = IMC_CNTL_BLK_OFFSET;
+
+@@ -77,21 +69,15 @@ static void export_imc_mode_and_cmd(stru
+ loc = (u64)(pmu_ptr->mem_info[chip].vbase) + cb_offset;
+ imc_mode_addr = (u64 *)(loc + IMC_CNTL_BLK_MODE_OFFSET);
+ sprintf(mode, "imc_mode_%d", nid);
+- if (!imc_debugfs_create_x64(mode, 0600, imc_debugfs_parent,
+- imc_mode_addr))
+- goto err;
++ imc_debugfs_create_x64(mode, 0600, imc_debugfs_parent,
++ imc_mode_addr);
+
+ imc_cmd_addr = (u64 *)(loc + IMC_CNTL_BLK_CMD_OFFSET);
+ sprintf(cmd, "imc_cmd_%d", nid);
+- if (!imc_debugfs_create_x64(cmd, 0600, imc_debugfs_parent,
+- imc_cmd_addr))
+- goto err;
++ imc_debugfs_create_x64(cmd, 0600, imc_debugfs_parent,
++ imc_cmd_addr);
+ chip++;
+ }
+- return;
+-
+-err:
+- debugfs_remove_recursive(imc_debugfs_parent);
+ }
+
+ /*
+--- a/arch/powerpc/platforms/powernv/pci-ioda.c
++++ b/arch/powerpc/platforms/powernv/pci-ioda.c
+@@ -3167,11 +3167,6 @@ static void pnv_pci_ioda_create_dbgfs(vo
+
+ sprintf(name, "PCI%04x", hose->global_number);
+ phb->dbgfs = debugfs_create_dir(name, powerpc_debugfs_root);
+- if (!phb->dbgfs) {
+- pr_warn("%s: Error on creating debugfs on PHB#%x\n",
+- __func__, hose->global_number);
+- continue;
+- }
+
+ debugfs_create_file("dump_diag_regs", 0200, phb->dbgfs, hose,
+ &pnv_pci_diag_data_fops);
+--- a/arch/powerpc/platforms/powernv/vas-debug.c
++++ b/arch/powerpc/platforms/powernv/vas-debug.c
+@@ -119,7 +119,7 @@ void vas_window_free_dbgdir(struct vas_w
+
+ void vas_window_init_dbgdir(struct vas_window *window)
+ {
+- struct dentry *f, *d;
++ struct dentry *d;
+
+ if (!window->vinst->dbgdir)
+ return;
+@@ -131,28 +131,10 @@ void vas_window_init_dbgdir(struct vas_w
+ snprintf(window->dbgname, 16, "w%d", window->winid);
+
+ d = debugfs_create_dir(window->dbgname, window->vinst->dbgdir);
+- if (IS_ERR(d))
+- goto free_name;
+-
+ window->dbgdir = d;
+
+- f = debugfs_create_file("info", 0444, d, window, &info_fops);
+- if (IS_ERR(f))
+- goto remove_dir;
+-
+- f = debugfs_create_file("hvwc", 0444, d, window, &hvwc_fops);
+- if (IS_ERR(f))
+- goto remove_dir;
+-
+- return;
+-
+-remove_dir:
+- debugfs_remove_recursive(window->dbgdir);
+- window->dbgdir = NULL;
+-
+-free_name:
+- kfree(window->dbgname);
+- window->dbgname = NULL;
++ debugfs_create_file("info", 0444, d, window, &info_fops);
++ debugfs_create_file("hvwc", 0444, d, window, &hvwc_fops);
+ }
+
+ void vas_instance_init_dbgdir(struct vas_instance *vinst)
+@@ -160,8 +142,6 @@ void vas_instance_init_dbgdir(struct vas
+ struct dentry *d;
+
+ vas_init_dbgdir();
+- if (!vas_debugfs)
+- return;
+
+ vinst->dbgname = kzalloc(16, GFP_KERNEL);
+ if (!vinst->dbgname)
+@@ -170,16 +150,7 @@ void vas_instance_init_dbgdir(struct vas
+ snprintf(vinst->dbgname, 16, "v%d", vinst->vas_id);
+
+ d = debugfs_create_dir(vinst->dbgname, vas_debugfs);
+- if (IS_ERR(d))
+- goto free_name;
+-
+ vinst->dbgdir = d;
+- return;
+-
+-free_name:
+- kfree(vinst->dbgname);
+- vinst->dbgname = NULL;
+- vinst->dbgdir = NULL;
+ }
+
+ /*
+@@ -195,6 +166,4 @@ void vas_init_dbgdir(void)
+
+ first_time = false;
+ vas_debugfs = debugfs_create_dir("vas", NULL);
+- if (IS_ERR(vas_debugfs))
+- vas_debugfs = NULL;
+ }
+--- a/arch/powerpc/platforms/pseries/dtl.c
++++ b/arch/powerpc/platforms/pseries/dtl.c
+@@ -32,7 +32,6 @@
+
+ struct dtl {
+ struct dtl_entry *buf;
+- struct dentry *file;
+ int cpu;
+ int buf_entries;
+ u64 last_idx;
+@@ -332,22 +331,16 @@ static const struct file_operations dtl_
+
+ static struct dentry *dtl_dir;
+
+-static int dtl_setup_file(struct dtl *dtl)
++static void dtl_setup_file(struct dtl *dtl)
+ {
+ char name[10];
+
+ sprintf(name, "cpu-%d", dtl->cpu);
+-
+- dtl->file = debugfs_create_file(name, 0400, dtl_dir, dtl, &dtl_fops);
+- if (!dtl->file)
+- return -ENOMEM;
+-
+- return 0;
++ debugfs_create_file(name, 0400, dtl_dir, dtl, &dtl_fops);
+ }
+
+ static int dtl_init(void)
+ {
+- struct dentry *event_mask_file, *buf_entries_file;
+ int rc, i;
+
+ if (!firmware_has_feature(FW_FEATURE_SPLPAR))
+@@ -357,21 +350,9 @@ static int dtl_init(void)
+
+ rc = -ENOMEM;
+ dtl_dir = debugfs_create_dir("dtl", powerpc_debugfs_root);
+- if (!dtl_dir) {
+- printk(KERN_WARNING "%s: can't create dtl root dir\n",
+- __func__);
+- goto err;
+- }
+
+- event_mask_file = debugfs_create_x8("dtl_event_mask", 0600,
+- dtl_dir, &dtl_event_mask);
+- buf_entries_file = debugfs_create_u32("dtl_buf_entries", 0400,
+- dtl_dir, &dtl_buf_entries);
+-
+- if (!event_mask_file || !buf_entries_file) {
+- printk(KERN_WARNING "%s: can't create dtl files\n", __func__);
+- goto err_remove_dir;
+- }
++ debugfs_create_x8("dtl_event_mask", 0600, dtl_dir, &dtl_event_mask);
++ debugfs_create_u32("dtl_buf_entries", 0400, dtl_dir, &dtl_buf_entries);
+
+ /* set up the per-cpu log structures */
+ for_each_possible_cpu(i) {
+@@ -379,16 +360,9 @@ static int dtl_init(void)
+ spin_lock_init(&dtl->lock);
+ dtl->cpu = i;
+
+- rc = dtl_setup_file(dtl);
+- if (rc)
+- goto err_remove_dir;
++ dtl_setup_file(dtl);
+ }
+
+ return 0;
+-
+-err_remove_dir:
+- debugfs_remove_recursive(dtl_dir);
+-err:
+- return rc;
+ }
+ machine_arch_initcall(pseries, dtl_init);
+--- a/arch/powerpc/platforms/pseries/hvCall_inst.c
++++ b/arch/powerpc/platforms/pseries/hvCall_inst.c
+@@ -142,7 +142,6 @@ static void probe_hcall_exit(void *ignor
+ static int __init hcall_inst_init(void)
+ {
+ struct dentry *hcall_root;
+- struct dentry *hcall_file;
+ char cpu_name_buf[CPU_NAME_BUF_SIZE];
+ int cpu;
+
+@@ -158,17 +157,12 @@ static int __init hcall_inst_init(void)
+ }
+
+ hcall_root = debugfs_create_dir(HCALL_ROOT_DIR, NULL);
+- if (!hcall_root)
+- return -ENOMEM;
+
+ for_each_possible_cpu(cpu) {
+ snprintf(cpu_name_buf, CPU_NAME_BUF_SIZE, "cpu%d", cpu);
+- hcall_file = debugfs_create_file(cpu_name_buf, 0444,
+- hcall_root,
+- per_cpu(hcall_stats, cpu),
+- &hcall_inst_seq_fops);
+- if (!hcall_file)
+- return -ENOMEM;
++ debugfs_create_file(cpu_name_buf, 0444, hcall_root,
++ per_cpu(hcall_stats, cpu),
++ &hcall_inst_seq_fops);
+ }
+
+ return 0;
+--- a/arch/powerpc/sysdev/scom.c
++++ b/arch/powerpc/sysdev/scom.c
+@@ -198,12 +198,6 @@ static int scom_debug_init_one(struct de
+ ent->path.size = strlen((char *)ent->path.data);
+
+ dir = debugfs_create_dir(ent->name, root);
+- if (!dir) {
+- of_node_put(dn);
+- kfree(ent->path.data);
+- kfree(ent);
+- return -1;
+- }
+
+ debugfs_create_blob("devspec", 0400, dir, &ent->path);
+ debugfs_create_file("access", 0600, dir, ent, &scom_debug_fops);
+@@ -218,8 +212,6 @@ static int scom_debug_init(void)
+ int i, rc;
+
+ root = debugfs_create_dir("scom", powerpc_debugfs_root);
+- if (!root)
+- return -1;
+
+ i = rc = 0;
+ for_each_node_with_property(dn, "scom-controller") {
generated by cgit 1.2.3-korg (git 2.43.0) at 2026-03-01 15:52:39 +0000