diff options
author | Paul Mundt <lethal@linux-sh.org> | 2012-02-24 13:23:23 +0900 |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2012-02-24 13:23:23 +0900 |
commit | 35eb304b5cd7b49d581bda79218b8134f3b689ea (patch) | |
tree | 3d75d9ada70814161d035b2f9166fee05d257dfb /drivers/input/serio/serio_raw.c | |
parent | ca0cc30109241f280eb871794620d7cf198bb582 (diff) | |
parent | bb4c7e9a9908548b458f34afb2fee74dc0d49f90 (diff) | |
download | linux-3.10-35eb304b5cd7b49d581bda79218b8134f3b689ea.tar.gz linux-3.10-35eb304b5cd7b49d581bda79218b8134f3b689ea.tar.bz2 linux-3.10-35eb304b5cd7b49d581bda79218b8134f3b689ea.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into rmobile-fixes-for-linus
Diffstat (limited to 'drivers/input/serio/serio_raw.c')
-rw-r--r-- | drivers/input/serio/serio_raw.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c index 8250299fd64..4494233d331 100644 --- a/drivers/input/serio/serio_raw.c +++ b/drivers/input/serio/serio_raw.c @@ -164,7 +164,8 @@ static ssize_t serio_raw_read(struct file *file, char __user *buffer, struct serio_raw_client *client = file->private_data; struct serio_raw *serio_raw = client->serio_raw; char uninitialized_var(c); - ssize_t retval = 0; + ssize_t read = 0; + int retval; if (serio_raw->dead) return -ENODEV; @@ -180,13 +181,15 @@ static ssize_t serio_raw_read(struct file *file, char __user *buffer, if (serio_raw->dead) return -ENODEV; - while (retval < count && serio_raw_fetch_byte(serio_raw, &c)) { - if (put_user(c, buffer++)) - return -EFAULT; - retval++; + while (read < count && serio_raw_fetch_byte(serio_raw, &c)) { + if (put_user(c, buffer++)) { + retval = -EFAULT; + break; + } + read++; } - return retval; + return read ?: retval; } static ssize_t serio_raw_write(struct file *file, const char __user *buffer, |