[PATCH] arm64/crc-t10dif: fix use of out-of-scope array in crc_t10dif_arch()

Eric Biggers
2025-03-26T20:09:52Z

From: Eric Biggers <ebiggers@google.com>

Fix a silly bug where an array was used outside of its scope.

Fixes: 2051da858534 ("arm64/crc-t10dif: expose CRC-T10DIF function through lib")
Cc: stable@vger.kernel.org
Reported-by: David Binderman <dcb314@hotmail.com>
Closes: https://lore.kernel.org/r/AS8PR02MB102170568EAE7FFDF93C8D1ED9CA62@AS8PR02MB10217.eurprd02.prod.outlook.com
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
arch/arm64/lib/crc-t10dif-glue.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/arm64/lib/crc-t10dif-glue.c b/arch/arm64/lib/crc-t10dif-glue.c
index a007d0c5f3fed..bacd18f231688 100644
--- a/arch/arm64/lib/crc-t10dif-glue.c
+++ b/arch/arm64/lib/crc-t10dif-glue.c
@@ -43,13 +43,11 @@ u16 crc_t10dif_arch(u16 crc, const u8 *data, size_t length)

kernel_neon_begin();
crc_t10dif_pmull_p8(crc, data, length, buf);
kernel_neon_end();

- crc = 0;
- data = buf;
- length = sizeof(buf);
+ return crc_t10dif_generic(0, buf, sizeof(buf));
}
}
return crc_t10dif_generic(crc, data, length);
}
EXPORT_SYMBOL(crc_t10dif_arch);

base-commit: 1e26c5e28ca5821a824e90dd359556f5e9e7b89f
--
2.49.0