If kmemdup fails, We need kfree *buff* first then return -ENOMEM.
Otherwise there is a memory leak.
Signed-off-by: Pan Xinhui <xinhui....@linux.vnet.ibm.com>
---
arch/powerpc/kernel/nvram_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index 32e2652..21a278b7 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -542,9 +542,9 @@ static ssize_t nvram_pstore_read(u64 *id, enum
pstore_type_id *type,
time->tv_nsec = 0;
}
*buf = kmemdup(buff + hdr_size, length, GFP_KERNEL);
+ kfree(buff);
if (*buf == NULL)
return -ENOMEM;
- kfree(buff);
if (err_type == ERR_TYPE_KERNEL_PANIC_GZ)
*compressed = true;
--
2.5.0
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