| From c56935bdc0a8edf50237d3b0205133a5b0adc604 Mon Sep 17 00:00:00 2001 |
| From: Lars-Peter Clausen <lars@metafoo.de> |
| Date: Mon, 28 Nov 2011 09:44:15 +0100 |
| Subject: firmware: Sigma: Skip header during CRC generation |
| |
| From: Lars-Peter Clausen <lars@metafoo.de> |
| |
| commit c56935bdc0a8edf50237d3b0205133a5b0adc604 upstream. |
| |
| 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> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
| |
| --- |
| drivers/firmware/sigma.c | 3 ++- |
| 1 file changed, 2 insertions(+), 1 deletion(-) |
| |
| --- a/drivers/firmware/sigma.c |
| +++ b/drivers/firmware/sigma.c |
| @@ -130,7 +130,8 @@ int process_sigma_firmware(struct i2c_cl |
| 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; |
