diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2022-03-21 13:40:51 -0700 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-04-11 19:21:34 +0530 |
| commit | 81f5eb2b11ba748ee7e393e2faf32af773ae332d (patch) | |
| tree | 36b75b51037ac5b71a9e53ebe9d6ad20a118e90b /drivers/dma | |
| parent | 1f854536a8336c61c89ab040bbc874c75325d37c (diff) | |
dmaengine: idxd: remove trailing white space on input str for wq name
Add string processing with strim() in order to remove trailing white spaces
that may be input by user for the wq->name.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/164789525123.2799661.13795829125221129132.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/idxd/sysfs.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c index 7e19ab92b61a..7e628e31ce24 100644 --- a/drivers/dma/idxd/sysfs.c +++ b/drivers/dma/idxd/sysfs.c @@ -832,6 +832,7 @@ static ssize_t wq_name_store(struct device *dev, size_t count) { struct idxd_wq *wq = confdev_to_wq(dev); + char *input, *pos; if (wq->state != IDXD_WQ_DISABLED) return -EPERM; @@ -846,9 +847,14 @@ static ssize_t wq_name_store(struct device *dev, if (wq->type == IDXD_WQT_KERNEL && device_pasid_enabled(wq->idxd)) return -EOPNOTSUPP; + input = kstrndup(buf, count, GFP_KERNEL); + if (!input) + return -ENOMEM; + + pos = strim(input); memset(wq->name, 0, WQ_NAME_SIZE + 1); - strncpy(wq->name, buf, WQ_NAME_SIZE); - strreplace(wq->name, '\n', '\0'); + sprintf(wq->name, "%s", pos); + kfree(input); return count; } |