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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2024-10-21 00:04:05 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2024-10-21 00:12:11 -0700
commitd0c3a7aa814c091843ccca467c02078db9da4e1e (patch)
treecb28ed5d8d1fe85e0f641e1422c65a351d81d93a
parent00850d7b542aa4a8240cf977d43dc6d2158e48d7 (diff)
Input: serio_raw - fix uninitialized variable bug
Recent conversion of the driver to use guard notation for locks and other resources introduced a bug: "written" variable that is supposed to hold number of bytes successfully written was not initialized. Fix it by initializing the variable with 0. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202410201730.ItNhUTIv-lkp@intel.com/ Fixes: 5b53a9d40c4f ("Input: serio_raw - use guard notation for locks and other resources") Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
-rw-r--r--drivers/input/serio/serio_raw.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
index e058fef07f57..4d6395088986 100644
--- a/drivers/input/serio/serio_raw.c
+++ b/drivers/input/serio/serio_raw.c
@@ -185,7 +185,7 @@ static ssize_t serio_raw_write(struct file *file, const char __user *buffer,
{
struct serio_raw_client *client = file->private_data;
struct serio_raw *serio_raw = client->serio_raw;
- int written;
+ int written = 0;
unsigned char c;
scoped_guard(mutex_intr, &serio_raw_mutex) {