diff options
| author | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-21 09:38:53 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-21 09:38:53 -0700 |
| commit | 135a78fc67404be38c5a11f429873e0f8657c4ef (patch) | |
| tree | 74aa3561fec95195b8ae4be569aec513ad41a922 /tty | |
| parent | ca58b2d9654abdd4d2fdd79e651633473043e692 (diff) | |
| download | patches-135a78fc67404be38c5a11f429873e0f8657c4ef.tar.gz | |
delete broken tty patch
Diffstat (limited to 'tty')
| -rw-r--r-- | tty/serial-apbuart-let-boards-without-apbuart-boot.patch | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/tty/serial-apbuart-let-boards-without-apbuart-boot.patch b/tty/serial-apbuart-let-boards-without-apbuart-boot.patch deleted file mode 100644 index 8e7122e9d66778..00000000000000 --- a/tty/serial-apbuart-let-boards-without-apbuart-boot.patch +++ /dev/null @@ -1,134 +0,0 @@ -From avorontsov@mvista.com Fri May 14 12:17:06 2010 -From: Anton Vorontsov <avorontsov@mvista.com> -Date: Fri, 14 May 2010 18:19:49 +0400 -Subject: serial: apbuart: Let boards without apbuart boot -To: David Miller <davem@davemloft.net>, Greg Kroah-Hartman <gregkh@suse.de> -Cc: Kristoffer Glembo <kristoffer@gaisler.com>, linux-kernel@vger.kernel.org -Message-ID: <20100514141949.GA9244@oksana.dev.rtsoft.ru> -Content-Disposition: inline - - -This patch fixes the following oops: - - Unable to handle kernel paging request for data at address 0x00000000 - Faulting instruction address: 0xc016dea8 - Oops: Kernel access of bad area, sig: 11 [#1] - P1020 RDB - last sysfs file: - NIP: c016dea8 LR: c016dea0 CTR: c0010948 - REGS: c033fea0 TRAP: 0300 Not tainted (2.6.34-rc7-00108-g83b5177-dirty) - [...] - NIP [c016dea8] grlib_apbuart_configure+0xd0/0x3bc - LR [c016dea0] grlib_apbuart_configure+0xc8/0x3bc - Call Trace: - [c033ff50] [c016dea0] grlib_apbuart_configure+0xc8/0x3bc (unreliable) - [c033ffa0] [c0316144] apbuart_console_init+0x10/0x34 - [c033ffb0] [c0314a10] console_init+0x40/0x5c - -There's no apbuart on P1020 boards, and what's worse, there's no -clock-frequency property for it. The driver didn't handle this -case, which resulted in the oops above. Once we fix this, the -next oops pops up: - - Unable to handle kernel paging request for data at address 0x00000030 - Faulting instruction address: 0xc0166ecc - Oops: Kernel access of bad area, sig: 11 [#1] - P1020 RDB - [...] - NIP [c0166ecc] uart_set_options+0xd0/0x164 - LR [c0166e38] uart_set_options+0x3c/0x164 - Call Trace: - [c033fef0] [c0330000] 0xc0330000 (unreliable) - [c033ff50] [c03160dc] apbuart_console_setup+0xa8/0x100 - [c033ff70] [c003d668] register_console+0x338/0x3ec - [c033ffa0] [c0316154] apbuart_console_init+0x20/0x34 - [c033ffb0] [c0314a10] console_init+0x40/0x5c - [c033ffc0] [c0300968] start_kernel+0x12c/0x234 - [c033fff0] [c0000398] skpinv+0x2b0/0x2ec - -And that one is because the driver tries to register the console -even if there were no matches in grlib_apbuart_configure(). - -While at it, also annotate grlib_apbuart_configure() with __init, -that fixes several section mismatches: - - Section mismatch in reference from the function - grlib_apbuart_configure() to the variable .init.data:apbuart_match - The function grlib_apbuart_configure() references the variable - __initdata apbuart_match. - -Signed-off-by: Anton Vorontsov <avorontsov@mvista.com> -Cc: "David S. Miller" <davem@davemloft.net> -Acked-by: Kristoffer Glembo <kristoffer@gaisler.com> -Signed-off-by: Andrew Morton <akpm@linux-foundation.org> -Cc: stable <stable@kernel.org> -Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> - ---- - drivers/serial/apbuart.c | 19 ++++++++++++++----- - 1 file changed, 14 insertions(+), 5 deletions(-) - ---- a/drivers/serial/apbuart.c -+++ b/drivers/serial/apbuart.c -@@ -520,11 +520,16 @@ static struct console grlib_apbuart_cons - }; - - --static void grlib_apbuart_configure(void); -+static int __init grlib_apbuart_configure(void); - - static int __init apbuart_console_init(void) - { -- grlib_apbuart_configure(); -+ int ret; -+ -+ ret = grlib_apbuart_configure(); -+ if (ret) -+ return ret; -+ - register_console(&grlib_apbuart_console); - return 0; - } -@@ -593,7 +598,7 @@ static struct of_platform_driver grlib_a - }; - - --static void grlib_apbuart_configure(void) -+static int __init grlib_apbuart_configure(void) - { - static int enum_done; - struct device_node *np, *rp; -@@ -606,12 +611,14 @@ static void grlib_apbuart_configure(void - struct amba_prom_registers *regs; - - if (enum_done) -- return; -+ return -ENODEV; - - /* Get bus frequency */ - rp = of_find_node_by_path("/"); - rp = of_get_next_child(rp, NULL); - prop = of_get_property(rp, "clock-frequency", NULL); -+ if (!prop) -+ return -ENODEV; - freq_khz = *prop; - - line = 0; -@@ -629,7 +636,7 @@ static void grlib_apbuart_configure(void - d = *device; - - if (!irqs || !regs) -- return; -+ return -ENODEV; - - grlib_apbuart_nodes[line] = np; - -@@ -658,6 +665,8 @@ static void grlib_apbuart_configure(void - enum_done = 1; - - grlib_apbuart_driver.nr = grlib_apbuart_port_nr = line; -+ -+ return line ? 0 : -ENODEV; - } - - static int __init grlib_apbuart_init(void) |