hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

DMA: PL330: Check the pointer returned by kzalloc 

kzalloc could return NULL. Hence add a check to avoid
NULL pointer dereference.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
This commit is contained in:
Sachin Kamat 2012-09-17 15:20:23 +05:30 committed by Vinod Koul
parent 2e2c682bec
commit 61c6e7531d
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/dma/pl330.c
View File

@ -2930,6 +2930,11 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
num_chan = max_t(int, pi->pcfg.num_peri, pi->pcfg.num_chan);
pdmac->peripherals = kzalloc(num_chan * sizeof(*pch), GFP_KERNEL);
if (!pdmac->peripherals) {
ret = -ENOMEM;
dev_err(&adev->dev, "unable to allocate pdmac->peripherals\n");
goto probe_err5;
}
for (i = 0; i < num_chan; i++) {
pch = &pdmac->peripherals[i];