diff mbox series

[08/12] block: use kstrtoul in flag_store

Message ID 20240613084839.1044015-9-hch@lst.de (mailing list archive)
State Accepted
Commit 1d59857ed2ec4d506e346859713c4325b5053da3
Headers show
Series [01/12] block: initialize integrity buffer to zero before writing it to media | expand

Commit Message

Christoph Hellwig June 13, 2024, 8:48 a.m. UTC 
Use the text to integer helper that has error handling and doesn't modify
the input pointer.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
 block/blk-integrity.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

Comments

Kanchan Joshi June 14, 2024, 12:46 p.m. UTC | #1 
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
diff mbox series

Patch

diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index 24671d9f90a124..58760a6d6b2209 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -247,8 +247,12 @@  static ssize_t flag_store(struct device *dev, struct device_attribute *attr,
 		const char *page, size_t count, unsigned char flag)
 {
 	struct blk_integrity *bi = dev_to_bi(dev);
-	char *p = (char *) page;
-	unsigned long val = simple_strtoul(p, &p, 10);
+	unsigned long val;
+	int err;
+
+	err = kstrtoul(page, 10, &val);
+	if (err)
+		return err;
 
 	if (val)
 		bi->flags |= flag;