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Input: serio_raw - fix uninitialized variable bug

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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: 5b53a9d40c ("Input: serio_raw - use guard notation for locks and other resources")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov
2024-10-21 00:04:05 -07:00
parent 00850d7b54
commit d0c3a7aa81
1 changed files with 1 additions and 1 deletions
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2
drivers/input/serio/serio_raw.c
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@@ -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) {