MIRRORS/linux-yocto
1
0
Fork 0
mirror of git://git.yoctoproject.org/linux-yocto.git synced 2025-10-22 23:13:01 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

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

Browse Source 
commit 25f526507b8ccc6ac3a43bc094d09b1f9b0b90ae 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 2025-08-25 10:34:35 +01:00 committed by Greg Kroah-Hartman
parent 688c688e0b
commit 84ec0482ed
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/bus/fsl-mc/fsl-mc-bus.c
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;