diff options
Diffstat (limited to 'meta-aspeed/recipes-kernel/linux/files/patch-2.6.28.9/0010-mtd-m25p80-fix-null-pointer-dereference-bug.patch')
| -rw-r--r-- | meta-aspeed/recipes-kernel/linux/files/patch-2.6.28.9/0010-mtd-m25p80-fix-null-pointer-dereference-bug.patch | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/meta-aspeed/recipes-kernel/linux/files/patch-2.6.28.9/0010-mtd-m25p80-fix-null-pointer-dereference-bug.patch b/meta-aspeed/recipes-kernel/linux/files/patch-2.6.28.9/0010-mtd-m25p80-fix-null-pointer-dereference-bug.patch new file mode 100644 index 0000000..7727636 --- /dev/null +++ b/meta-aspeed/recipes-kernel/linux/files/patch-2.6.28.9/0010-mtd-m25p80-fix-null-pointer-dereference-bug.patch @@ -0,0 +1,56 @@ +From edcb3b14863e1a6aa1923eeaa81125a00cf51a80 Mon Sep 17 00:00:00 2001 +From: Anton Vorontsov <avorontsov@ru.mvista.com> +Date: Thu, 6 Aug 2009 15:18:37 -0700 +Subject: [PATCH 10/16] mtd: m25p80: fix null pointer dereference bug + +This patch fixes the following oops, observed with MTD_PARTITIONS=n: + +m25p80 spi32766.0: m25p80 (1024 Kbytes) +Unable to handle kernel paging request for data at address 0x00000008 +Faulting instruction address: 0xc03a54b0 +Oops: Kernel access of bad area, sig: 11 [#1] +Modules linked in: +NIP: c03a54b0 LR: c03a5494 CTR: c01e98b8 +REGS: ef82bb60 TRAP: 0300 Not tainted (2.6.31-rc4-00167-g4733fd3) +MSR: 00029000 <EE,ME,CE> CR: 24022022 XER: 20000000 +DEAR: 00000008, ESR: 00000000 +TASK = ef82c000[1] 'swapper' THREAD: ef82a000 +GPR00: 00000000 ef82bc10 ef82c000 0000002e 00001eb8 ffffffff c01e9824 00000036 +GPR08: c054ed40 c0542a08 00001eb8 00004000 22022022 1001a1a0 3ff8fd00 00000000 +GPR16: 00000000 00000001 00000000 00000000 ef82bddc c0530000 efbef500 ef8356d0 +GPR24: 00000000 ef8356d0 00000000 efbf7a00 c0530ec4 ffffffed efbf5300 c0541f98 +NIP [c03a54b0] m25p_probe+0x22c/0x354 +LR [c03a5494] m25p_probe+0x210/0x354 +Call Trace: +[ef82bc10] [c03a5494] m25p_probe+0x210/0x354 (unreliable) +[ef82bca0] [c024e37c] spi_drv_probe+0x2c/0x3c +[ef82bcb0] [c01f1afc] driver_probe_device+0xa4/0x178 +[ef82bcd0] [c01f06e8] bus_for_each_drv+0x6c/0xa8 +[ef82bd00] [c01f1a34] device_attach+0x84/0xa8 +... + +Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> +Cc: David Brownell <david-b@pacbell.net> +Signed-off-by: Andrew Morton <akpm@linux-foundation.org> +Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> +Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> +--- + drivers/mtd/devices/m25p80.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c +index ae5fe91..10ed195 100644 +--- a/drivers/mtd/devices/m25p80.c ++++ b/drivers/mtd/devices/m25p80.c +@@ -736,7 +736,7 @@ static int __devinit m25p_probe(struct spi_device *spi) + flash->partitioned = 1; + return add_mtd_partitions(&flash->mtd, parts, nr_parts); + } +- } else if (data->nr_parts) ++ } else if (data && data->nr_parts) + dev_warn(&spi->dev, "ignoring %d default partitions on %s\n", + data->nr_parts, data->name); + +-- +1.8.1 + |
