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powerpc/pseries: fix memory leak on krealloc failure in papr_init

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When krealloc() fails, free the original esi_buf before returning to
avoid a memory leak.

Fixes: 3c14b73454 ("powerpc/pseries: Interface to represent PAPR firmware attributes")
Cc: stable@vger.kernel.org
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260614142356.658212-2-thorsten.blum@linux.dev
This commit is contained in:
Thorsten Blum 2026-06-14 16:23:56 +02:00 committed by Madhavan Srinivasan
parent d610d3ab18
commit bd83c98b98
1 changed files with 3 additions and 5 deletions
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8
arch/powerpc/platforms/pseries/papr_platform_attributes.c
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@ -271,11 +271,9 @@ static int __init papr_init(void)
esi_buf_size = ESI_HDR_SIZE + (CURR_MAX_ESI_ATTRS * max_esi_attrs);
temp_esi_buf = krealloc(esi_buf, esi_buf_size, GFP_KERNEL);
if (temp_esi_buf)
esi_buf = temp_esi_buf;
else
return -ENOMEM;
if (!temp_esi_buf)
goto out_free_esi_buf;
esi_buf = temp_esi_buf;
goto retry;
}