In write_flash_image(), calling function "lseek" without checking
return value has risk. Negative return value should be handled as
an error condition.
Coverity issue: 367478
Fixes: 7a4f3993f269 ("raw/ifpga: add FPGA RSU APIs")
Signed-off-by: Wei Huang <wei.hu...@intel.com>
---
drivers/raw/ifpga/base/ifpga_fme_rsu.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/raw/ifpga/base/ifpga_fme_rsu.c
b/drivers/raw/ifpga/base/ifpga_fme_rsu.c
index d32f1eccb1..a4cb2f54ba 100644
--- a/drivers/raw/ifpga/base/ifpga_fme_rsu.c
+++ b/drivers/raw/ifpga/base/ifpga_fme_rsu.c
@@ -130,7 +130,12 @@ static int write_flash_image(struct ifpga_sec_mgr *smgr,
const char *image,
do {
to_transfer = (length > IFPGA_RSU_DATA_BLK_SIZE) ?
IFPGA_RSU_DATA_BLK_SIZE : length;
- lseek(fd, offset, SEEK_SET);
+ if (lseek(fd, offset, SEEK_SET) < 0) {
+ dev_err(smgr, "Failed to seek in \'%s\' [e:%s]\n",
+ image, strerror(errno));
+ ret = -EIO;
+ goto end;
+ }
read_size = read(fd, buf, to_transfer);
if (read_size < 0) {
dev_err(smgr, "Failed to read from \'%s\' [e:%s]\n",
--
2.29.2
