averello/linux-stable-mirror
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2026-09-22 09:34:56 +02:00
Code Issues Packages Projects Releases Wiki Activity

bus: fsl-mc: Check return value of platform_get_resource()

Browse Source 
commit 25f526507b upstream.

platform_get_resource() returns NULL in case of failure, so check its
return value and propagate the error in order to prevent NULL pointer
dereference.

Fixes: 6305166c87 ("bus: fsl-mc: Add ACPI support for fsl-mc")
Cc: stable@vger.kernel.org
Signed-off-by: Salah Triki <salah.triki@gmail.com>
Acked-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/aKwuK6TRr5XNYQ8u@pc
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Salah Triki
2025-10-15 11:58:10 +02:00
committed by Greg Kroah-Hartman
parent 1a2ea887a5
commit 78e87b8a3c
1 changed files with 3 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/bus/fsl-mc/fsl-mc-bus.c
+3
View File
@@ -1103,6 +1103,9 @@ static int fsl_mc_bus_probe(struct platform_device *pdev)
* Get physical address of MC portal for the root DPRC:
*/
plat_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!plat_res)
return -EINVAL;
mc_portal_phys_addr = plat_res->start;
mc_portal_size = resource_size(plat_res);
mc_portal_base_phys_addr = mc_portal_phys_addr & ~0x3ffffff;