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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
This commit is contained in:
Alexander Sverdlin 2021-02-17 22:18:44 +01:00 committed by Miquel Raynal
parent cb4543054c
commit ecd400ce5f
1 changed files with 2 additions and 8 deletions
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10
drivers/mtd/mtdchar.c
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@ -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 */