Commit 81f5eb2b authored by Dave Jiang's avatar Dave Jiang Committed by Vinod Koul
Browse files

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: default avatarDave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/164789525123.2799661.13795829125221129132.stgit@djiang5-desk3.ch.intel.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 1f854536

drivers/dma/idxd/sysfs.c

+8 −2
Original line number Diff line number Diff line
@@ -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;

}