| commit | 5c8e95fea6c5c922ecdfde9d41f460dcc2e797e4 | |
| author | Ben Dooks <ben-linux@fluff.org> | |
| Wed, 27 Apr 2011 13:24:19 +0000 (27 14:24 +0100) | ||
| committer | Andi Kleen <ak@linux.intel.com> | |
| Mon, 1 Aug 2011 20:54:43 +0000 (1 13:54 -0700) | ||
| tree | ad43a0b088cfd3bb786e68ccb568e3e28098bf4c | treesnapshot (tar.gz zip) |
| parent | 725296955c01285787cdfbaf813298626c9c09ee | commitdiff |
mmc: sdhci: Check mrq->cmd in sdhci_tasklet_finish
commit b7b4d3426d2b5ecab21578eb20d8e456a1aace8f upstream.
It seems that under certain circumstances that the sdhci_tasklet_finish()
call can be entered with mrq->cmd set to NULL, causing the system to crash
with a NULL pointer de-reference.
Unable to handle kernel NULL pointer dereference at virtual address 00000000
PC is at sdhci_tasklet_finish+0x34/0xe8
LR is at sdhci_tasklet_finish+0x24/0xe8
Seen on S3C6410 system.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
commit b7b4d3426d2b5ecab21578eb20d8e456a1aace8f upstream.
It seems that under certain circumstances that the sdhci_tasklet_finish()
call can be entered with mrq->cmd set to NULL, causing the system to crash
with a NULL pointer de-reference.
Unable to handle kernel NULL pointer dereference at virtual address 00000000
PC is at sdhci_tasklet_finish+0x34/0xe8
LR is at sdhci_tasklet_finish+0x24/0xe8
Seen on S3C6410 system.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
| drivers/mmc/host/sdhci.c | diffblobblamehistory |