powerpc/smp: Add check for kcalloc() failure in parse_thread_groups()

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[ Upstream commit 33c1c6d8a2 ]

As kcalloc() may fail, check its return value to avoid a NULL pointer
dereference when passing it to of_property_read_u32_array().

Fixes: 790a1662d3 ("powerpc/smp: Parse ibm,thread-groups with multiple properties")
Cc: stable@vger.kernel.org
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250923133235.1862108-1-lgs201920130244@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Guangshuo Li 2025-09-23 21:32:35 +08:00 • committed by Sasha Levin

parent ddb5735463

commit ca46d2092f

1 changed files with 2 additions and 0 deletions

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arch/powerpc/kernel/smp.c

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