mvsas: don't allow negative timeouts

There is a static checker warning here because "val" is controlled by
the user and we have a upper bound on it but allow negative numbers.
"val" appears to be a timeout in usec so this bug probably means we
have a longer timeout than we should.  Let's fix this by changing "val"
to unsigned.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 1960d956c671..b39fe6473a21 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -759,7 +759,7 @@ mvs_store_interrupt_coalescing(struct device *cdev,
                         struct device_attribute *attr,
                         const char *buffer, size_t size)
 {
-        int val = 0;
+        unsigned int val = 0;
         struct mvs_info *mvi = NULL;
         struct Scsi_Host *shost = class_to_shost(cdev);
         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
@@ -767,7 +767,7 @@ mvs_store_interrupt_coalescing(struct device *cdev,
         if (buffer == NULL)
                 return size;
 
-        if (sscanf(buffer, "%d", &val) != 1)
+        if (sscanf(buffer, "%u", &val) != 1)
                 return -EINVAL;
 
         if (val >= 0x10000) {