diff options
| author | Toshi Kani <[email protected]> | 2015-09-24 13:59:27 -0600 |
|---|---|---|
| committer | Borislav Petkov <[email protected]> | 2015-09-28 16:39:05 +0200 |
| commit | d0c9c93019e9b61f21ac22a5c23749873adc0038 (patch) | |
| tree | a697747506b4d36385cb5f984bc34bd1fe388151 | |
| parent | 438470b84c119f4910ebf1fdd26738c8d9881b24 (diff) | |
EDAC: Don't allow empty DIMM labels
Updating dimm_label to an empty string does not make much sense. Change
the sysfs dimm_label store operation to fail a request when an input
string is empty.
Suggested-by: Borislav Petkov <[email protected]>
Signed-off-by: Toshi Kani <[email protected]>
Cc: [email protected]
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: linux-edac <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Borislav Petkov <[email protected]>
| -rw-r--r-- | drivers/edac/edac_mc_sysfs.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c index bf6b6802105c..3929391f0b92 100644 --- a/drivers/edac/edac_mc_sysfs.c +++ b/drivers/edac/edac_mc_sysfs.c @@ -248,7 +248,7 @@ static ssize_t channel_dimm_label_store(struct device *dev, if (data[count - 1] == '\0' || data[count - 1] == '\n') copy_count -= 1; - if (copy_count >= sizeof(rank->dimm->label)) + if (copy_count == 0 || copy_count >= sizeof(rank->dimm->label)) return -EINVAL; strncpy(rank->dimm->label, data, copy_count); @@ -509,7 +509,7 @@ static ssize_t dimmdev_label_store(struct device *dev, if (data[count - 1] == '\0' || data[count - 1] == '\n') copy_count -= 1; - if (copy_count >= sizeof(dimm->label)) + if (copy_count == 0 || copy_count >= sizeof(dimm->label)) return -EINVAL; strncpy(dimm->label, data, copy_count); |