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authorBorislav Petkov <bp@suse.de>2014-02-04 00:05:13 +0400
committerBorislav Petkov <bp@suse.de>2014-02-14 13:40:29 +0400
commit9da21b1509d8aa7ab4846722817d16c72d656c91 (patch)
treee21027dab66b50e1f21e3dd9b62846f7473bda8a /drivers/edac/edac_mc_sysfs.c
parent4675348e78fab420e70f9144b320d9c063c7cee8 (diff)
downloadlinux-9da21b1509d8aa7ab4846722817d16c72d656c91.tar.xz
EDAC: Poll timeout cannot be zero, p2
Sanitize code even more to accept unsigned longs only and to not allow polling intervals below 1 second as this is unnecessary and doesn't make much sense anyway for polling errors. Signed-off-by: Borislav Petkov <bp@suse.de> Link: http://lkml.kernel.org/r/1391457913-881-1-git-send-email-prarit@redhat.com Cc: Doug Thompson <dougthompson@xmission.com> Cc: <stable@vger.kernel.org>
Diffstat (limited to 'drivers/edac/edac_mc_sysfs.c')
-rw-r--r--drivers/edac/edac_mc_sysfs.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 8ec1747b1c39..b335c6ab5efe 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -52,18 +52,20 @@ int edac_mc_get_poll_msec(void)
static int edac_set_poll_msec(const char *val, struct kernel_param *kp)
{
- long l;
+ unsigned long l;
int ret;
if (!val)
return -EINVAL;
- ret = kstrtol(val, 0, &l);
+ ret = kstrtoul(val, 0, &l);
if (ret)
return ret;
- if (!l || ((int)l != l))
+
+ if (l < 1000)
return -EINVAL;
- *((int *)kp->arg) = l;
+
+ *((unsigned long *)kp->arg) = l;
/* notify edac_mc engine to reset the poll period */
edac_mc_reset_delay_period(l);