| Message ID | 20240704031437.33338-1-jiapeng.chong@linux.alibaba.com |
|---|---|
| State | New |
| Headers | show |
| Series | [-next,v2] scsi: sd: Fix unsigned expression compared with zero in sd_spinup_disk() | expand |
On 7/3/24 8:14 PM, Jiapeng Chong wrote: > The return value from the call to scsi_execute_cmd() is int. However, the > return value is being assigned to an unsigned int variable 'the_result', > so making 'the_result' an int. > > ./drivers/scsi/sd.c:2333:6-16: WARNING: Unsigned expression compared with zero: the_result > 0. > > Reported-by: Abaci Robot <abaci@linux.alibaba.com> > Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9463 > Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> The following is missing from this patch: - An explanation of why this patch fixes a read of uninitialized data. - Fixed: and Cc: stable tags. Thanks, Bart.
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 979795dad62b..ade8c6cca295 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -2396,7 +2396,7 @@ sd_spinup_disk(struct scsi_disk *sdkp) static const u8 cmd[10] = { TEST_UNIT_READY }; unsigned long spintime_expire = 0; int spintime, sense_valid = 0; - unsigned int the_result; + int the_result; struct scsi_sense_hdr sshdr; struct scsi_failure failure_defs[] = { /* Do not retry Medium Not Present */
The return value from the call to scsi_execute_cmd() is int. However, the return value is being assigned to an unsigned int variable 'the_result', so making 'the_result' an int. ./drivers/scsi/sd.c:2333:6-16: WARNING: Unsigned expression compared with zero: the_result > 0. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9463 Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> --- Changes in v2: -Refine the title to make it more precise. drivers/scsi/sd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)