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.carpen...@oracle.com>
---
Checkpatch has several complaints about this code but I left it as-is.

diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 90fdf0e..675e7fa 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -758,7 +758,7 @@ 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);
@@ -766,7 +766,7 @@ 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) {
--
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