sscanf can handle negative values.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
Cc: Douglas Gilbert <dougg@xxxxxxxxxx>
Cc: James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/scsi_debug.c | 17 +++--------------
1 files changed, 3 insertions(+), 14 deletions(-)
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 7a2a3ed..2a388d0 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -2681,21 +2681,10 @@ static ssize_t sdebug_add_host_show(struct device_driver * ddp, char * buf)
static ssize_t sdebug_add_host_store(struct device_driver * ddp,
const char * buf, size_t count)
{
- int delta_hosts;
- char work[20];
+ int delta_hosts;
- if (1 != sscanf(buf, "%10s", work))
+ if (sscanf(buf, "%d", &delta_hosts) != 1)
return -EINVAL;
- { /* temporary hack around sscanf() problem with -ve nums */
- int neg = 0;
-
- if ('-' == *work)
- neg = 1;
- if (1 != sscanf(work + neg, "%d", &delta_hosts))
- return -EINVAL;
- if (neg)
- delta_hosts = -delta_hosts;
- }
if (delta_hosts > 0) {
do {
sdebug_add_adapter();
@@ -2707,7 +2696,7 @@ static ssize_t sdebug_add_host_store(struct device_driver * ddp,
}
return count;
}
-DRIVER_ATTR(add_host, S_IRUGO | S_IWUSR, sdebug_add_host_show,
+DRIVER_ATTR(add_host, S_IRUGO | S_IWUSR, sdebug_add_host_show,
sdebug_add_host_store);
static ssize_t sdebug_vpd_use_hostno_show(struct device_driver * ddp,
--
1.5.3.7
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