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kcsan: Use min() to fix Coccinelle warning

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Fixes the following Coccinelle/coccicheck warning reported by
minmax.cocci:

	WARNING opportunity for min()

Use const size_t instead of int for the result of min().

Compile-tested with CONFIG_KCSAN=y.

Reviewed-by: Marco Elver <elver@google.com>
Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Thorsten Blum 2024-06-24 19:57:28 +02:00 committed by Paul E. McKenney
parent 8400291e28
commit 43d631bf06
1 changed files with 1 additions and 1 deletions
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2
kernel/kcsan/debugfs.c
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@ -225,7 +225,7 @@ debugfs_write(struct file *file, const char __user *buf, size_t count, loff_t *o
{ {
char kbuf[KSYM_NAME_LEN]; char kbuf[KSYM_NAME_LEN];
char *arg; char *arg;
int read_len = count < (sizeof(kbuf) - 1) ? count : (sizeof(kbuf) - 1); const size_t read_len = min(count, sizeof(kbuf) - 1);
if (copy_from_user(kbuf, buf, read_len)) if (copy_from_user(kbuf, buf, read_len))
return -EFAULT; return -EFAULT;