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authorDan Carpenter <error27@gmail.com>2010-04-06 16:45:12 (GMT)
committerJoerg Roedel <joerg.roedel@amd.com>2010-04-07 12:36:27 (GMT)
commit39a37ce1cc5eef420604fa68b776ff5dab400340 (patch)
tree6303b715525daaefbc5b2ced63a1e697d47667a1 /lib/dma-debug.c
parent12ff4bf58b64ad3b8fb8e27889c99dcd5aa6fb0b (diff)
dma-debug: Cleanup for copy-loop in filter_write()
Earlier in this function we set the last byte of "buf" to NULL so we always hit the break statement and "i" is never equal to NAME_MAX_LEN. This patch doesn't change how the driver works but it silences a Smatch warning and it makes it clearer that we don't write past the end of the array. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'lib/dma-debug.c')
-rw-r--r--lib/dma-debug.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index ba8b670..01e6427 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -570,7 +570,7 @@ static ssize_t filter_write(struct file *file, const char __user *userbuf,
* Now parse out the first token and use it as the name for the
* driver to filter for.
*/
- for (i = 0; i < NAME_MAX_LEN; ++i) {
+ for (i = 0; i < NAME_MAX_LEN - 1; ++i) {
current_driver_name[i] = buf[i];
if (isspace(buf[i]) || buf[i] == ' ' || buf[i] == 0)
break;

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