mtd: char: Drop mtd_mutex usage from mtdchar_open()
It looks unnecessary in the function, remove it from the function
having in mind to remove it completely.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210217211845.43364-1-alexander.sverdlin@nokia.com
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 323035d..f31390d 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -58,13 +58,10 @@ static int mtdchar_open(struct inode *inode, struct file *file)
if ((file->f_mode & FMODE_WRITE) && (minor & 1))
return -EACCES;
- mutex_lock(&mtd_mutex);
mtd = get_mtd_device(NULL, devnum);
- if (IS_ERR(mtd)) {
- ret = PTR_ERR(mtd);
- goto out;
- }
+ if (IS_ERR(mtd))
+ return PTR_ERR(mtd);
if (mtd->type == MTD_ABSENT) {
ret = -ENODEV;
@@ -84,13 +81,10 @@ static int mtdchar_open(struct inode *inode, struct file *file)
}
mfi->mtd = mtd;
file->private_data = mfi;
- mutex_unlock(&mtd_mutex);
return 0;
out1:
put_mtd_device(mtd);
-out:
- mutex_unlock(&mtd_mutex);
return ret;
} /* mtdchar_open */