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authorLars-Peter Clausen <lars@metafoo.de>2011-11-28 09:44:15 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-11-29 11:59:44 +0000
commitc56935bdc0a8edf50237d3b0205133a5b0adc604 (patch)
tree0520283ac825f78162cb674e79d85e6fb60f76f0
parent4f718a29fe4908c2cea782f751e9805319684e2b (diff)
firmware: Sigma: Skip header during CRC generation
The firmware header is not part of the CRC, so skip it. Otherwise the firmware will be rejected due to non-matching CRCs. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@kernel.org
-rw-r--r--drivers/firmware/sigma.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/firmware/sigma.c b/drivers/firmware/sigma.c
index c780baa59ed..36265de0a9e 100644
--- a/drivers/firmware/sigma.c
+++ b/drivers/firmware/sigma.c
@@ -130,7 +130,8 @@ int process_sigma_firmware(struct i2c_client *client, const char *name)
if (memcmp(ssfw_head->magic, SIGMA_MAGIC, ARRAY_SIZE(ssfw_head->magic)))
goto done;
- crc = crc32(0, fw->data, fw->size);
+ crc = crc32(0, fw->data + sizeof(*ssfw_head),
+ fw->size - sizeof(*ssfw_head));
pr_debug("%s: crc=%x\n", __func__, crc);
if (crc != ssfw_head->crc)
goto done;