A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-05 19:31:57 -04:00
Code Issues Projects Releases Packages Wiki Activity

ata: pata_pxa: Fix potential NULL pointer dereference in pxa_ata_probe()

Browse source 
[ Upstream commit ad320e408a8c95a282ab9c05cdf0c9b95e317985 ]

devm_ioremap() returns NULL on error. Currently, pxa_ata_probe() does
not check for this case, which can result in a NULL pointer dereference.

Add NULL check after devm_ioremap() to prevent this issue.

Fixes: 2dc6c6f15d ("[ARM] pata_pxa: DMA-capable PATA driver")
Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Henry Martin 2025-04-04 14:14:38 +08:00 • committed by Greg Kroah-Hartman
commit a551f75401
1 changed files with 6 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

6
drivers/ata/pata_pxa.c
View file

@ -223,10 +223,16 @@ static int pxa_ata_probe(struct platform_device *pdev)
ap->ioaddr.cmd_addr = devm_ioremap(&pdev->dev, cmd_res->start,
resource_size(cmd_res));
if (!ap->ioaddr.cmd_addr)
return -ENOMEM;
ap->ioaddr.ctl_addr = devm_ioremap(&pdev->dev, ctl_res->start,
resource_size(ctl_res));
if (!ap->ioaddr.ctl_addr)
return -ENOMEM;
ap->ioaddr.bmdma_addr = devm_ioremap(&pdev->dev, dma_res->start,
resource_size(dma_res));
if (!ap->ioaddr.bmdma_addr)
return -ENOMEM;
/*
* Adjust register offsets