Le 25/08/2025 à 11:34, Salah Triki a écrit :
[Vous ne recevez pas souvent de courriers de salah.tr...@gmail.com. D?couvrez pourquoi ceci est important ? https://aka.ms/LearnAboutSenderIdentification ] 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: 6305166c8771 ("bus: fsl-mc: Add ACPI support for fsl-mc") Cc: <sta...@vger.kernel.org> Signed-off-by: Salah Triki <salah.tr...@gmail.com> --- Changes in v2: - Add Fixes and Cc tags, as suggested by Markus Elfring and Christophe Leroy. - Remove blank line before the if statement, as suggested by Markus Elfring. - Replace ENODEV with EINVAL, as suggestd by Christophe Leroy. drivers/bus/fsl-mc/fsl-mc-bus.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c index 7671bd158545..cd83cd564736 100644 --- a/drivers/bus/fsl-mc/fsl-mc-bus.c +++ b/drivers/bus/fsl-mc/fsl-mc-bus.c @@ -1105,6 +1105,9 @@ 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; -- 2.43.0
Applied, thanks! Christophe
