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remoteproc: snprintf() can return more than was printed 

snprintf() returns the number of characters which would have been
printed if there were enough space.  For example, on the first print if
we fill up the 28 character string then it would return a number more
than 30.  Use scnprintf() instead because that returns the actual number
of characters printed.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
This commit is contained in:
Dan Carpenter 2012-09-25 10:02:51 +03:00 committed by Ohad Ben-Cohen
parent ec4d02d918
commit ae768d5fac
1 changed files with 2 additions and 2 deletions
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4
drivers/remoteproc/remoteproc_debugfs.c
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@ -82,7 +82,7 @@ static ssize_t rproc_state_read(struct file *filp, char __user *userbuf,
state = rproc->state > RPROC_LAST ? RPROC_LAST : rproc->state;
i = snprintf(buf, 30, "%.28s (%d)\n", rproc_state_string[state],
i = scnprintf(buf, 30, "%.28s (%d)\n", rproc_state_string[state],
rproc->state);
return simple_read_from_buffer(userbuf, count, ppos, buf, i);
@ -103,7 +103,7 @@ static ssize_t rproc_name_read(struct file *filp, char __user *userbuf,
char buf[100];
int i;
i = snprintf(buf, sizeof(buf), "%.98s\n", rproc->name);
i = scnprintf(buf, sizeof(buf), "%.98s\n", rproc->name);
return simple_read_from_buffer(userbuf, count, ppos, buf, i);
}