diff options
| author | Olof Johansson <olof@lixom.net> | 2012-02-10 12:40:34 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-02-10 12:40:34 -0800 |
| commit | 082f53c2f573c75a8f1610c587a43b6817e20f90 (patch) | |
| tree | c3ad3a58967e7f7f61ff12ff59284dba1e76d093 /drivers/input/serio/serio_raw.c | |
| parent | e69128b947da0a2474447868f73c76311e2baedb (diff) | |
| parent | b024e33682c8e56cc8e869245dabd1b91ffe00ea (diff) | |
Merge branch 'for-arm-soc' of git://sources.calxeda.com/kernel/linux into next/soc
* 'for-arm-soc' of git://sources.calxeda.com/kernel/linux: (247 commits)
ARM: highbank: remove unused memory.h
ARM: highbank: enable sp804 based sched_clock
ARM: timer-sp: add sched_clock support
Linux 3.3-rc3
pcmcia: fix socket refcount decrementing on each resume
mm: fix UP THP spin_is_locked BUGs
drivers/leds/leds-lm3530.c: fix setting pltfm->als_vmax
mm: compaction: check for overlapping nodes during isolation for migration
nilfs2: avoid overflowing segment numbers in nilfs_ioctl_clean_segments()
ASoC: wm8994: Disable line output discharge prior to ramping VMID
ASoC: wm8994: Fix typo in VMID ramp setting
ALSA: oxygen, virtuoso: fix exchanged L/R volumes of aux and CD inputs
ALSA: usb-audio: add Edirol UM-3G support
checkpatch: Warn on code with 6+ tab indentation
ACPI: remove duplicated lines of merging problems with acpi_processor_add
ALSA: hda - add support for Uniwill ECS M31EI notebook
HID: wiimote: fix invalid power_supply_powers call
ALSA: hda - Fix error handling in patch_ca0132.c
target: Fix unsupported WRITE_SAME sense payload
iscsi: use IP_FREEBIND socket option
...
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, |