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firmware: Sigma: Skip header during CRC generation

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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 <[email protected]>
Acked-by: Mike Frysinger <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Cc: [email protected]
This commit is contained in:
Lars-Peter Clausen 2011-11-28 09:44:15 +01:00 • committed by Mark Brown
commit c56935bdc0
1 changed files with 2 additions and 1 deletions
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3
drivers/firmware/sigma.c
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@ -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;