Piteball/android_kernel_google_msm
1
0
Fork 0
mirror of https://github.com/followmsi/android_kernel_google_msm.git synced 2024-11-06 23:17:41 +00:00
Code Issues Projects Releases Wiki Activity

mfd: asic3: Fix potential null pointer dereference

Browse source 
We previously assumed 'mem_sdio' could be null but it is
dereferenced in ioremap(). Add a check to avoid a potential
null pointer dereference error.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Sachin Kamat 2014-06-10 15:30:34 +05:30 committed by Lee Jones
parent 967580598f
commit 44b61a9f23
1 changed files with 7 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/mfd/asic3.c
View file

@ -899,6 +899,7 @@ static int __init asic3_mfd_probe(struct platform_device *pdev,
ds1wm_resources[0].end >>= asic->bus_shift;
/* MMC */
if (mem_sdio) {
asic->tmio_cnf = ioremap((ASIC3_SD_CONFIG_BASE >> asic->bus_shift) +
mem_sdio->start,
ASIC3_SD_CONFIG_SIZE >> asic->bus_shift);
@ -907,6 +908,7 @@ static int __init asic3_mfd_probe(struct platform_device *pdev,
dev_dbg(asic->dev, "Couldn't ioremap SD_CONFIG\n");
goto out;
}
}
asic3_mmc_resources[0].start >>= asic->bus_shift;
asic3_mmc_resources[0].end >>= asic->bus_shift;