diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2012-02-27 16:23:15 +0000 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-02-27 16:23:21 +0000 |
| commit | a173fc693b25216c5c834978f4fafd731fd4ff94 (patch) | |
| tree | f75c2fa106217cc3afd1bde6803ca77fe953bbcf /drivers/input/serio/serio_raw.c | |
| parent | d052e161c4067cf21daacb1de960a1e449babfe4 (diff) | |
| parent | 759a45185ac0e4dfaf8bbfcb390ec73aca4b7a34 (diff) | |
Merge branch 'kirkwood/board' into next/boards
* kirkwood/board: (2 commits)
ARM: kirkwood: convert uart0 to devicetree.
ARM: kirkwood: add dreamplug (fdt) support.
Series sent by email from Jason Cooper <jason@lakedaemon.net>
Update to Linux 3.3-rc3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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 8250299fd64f..4494233d331a 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, |