diff options
| author | Johan Hovold <johan@kernel.org> | 2018-11-14 11:37:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-27 18:13:10 +0300 |
| commit | 466720dc7769643948dc6c26e8162c82b88775fc (patch) | |
| tree | 104279657212d2545ea2e6974146d4423f578823 /drivers/gnss | |
| parent | 9cdfd2233a6b6e98f5221764b634227bdf6c1764 (diff) | |
| download | linux-466720dc7769643948dc6c26e8162c82b88775fc.tar.xz | |
gnss: sirf: fix synchronous write timeout
commit 1decef370456870bf448a565be95db636428e106 upstream.
Passing a timeout of zero to the synchronous serdev_device_write()
helper does currently not imply to wait forever (unlike passing zero to
serdev_device_wait_until_sent()). Instead, if there's insufficient
room in the write buffer, we'd end up with an incomplete write.
Fixes: d2efbbd18b1e ("gnss: add driver for sirfstar-based receivers")
Cc: stable <stable@vger.kernel.org> # 4.19
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gnss')
| -rw-r--r-- | drivers/gnss/sirf.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gnss/sirf.c b/drivers/gnss/sirf.c index 79cb98950013..71d014edd167 100644 --- a/drivers/gnss/sirf.c +++ b/drivers/gnss/sirf.c @@ -16,6 +16,7 @@ #include <linux/pm.h> #include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> +#include <linux/sched.h> #include <linux/serdev.h> #include <linux/slab.h> #include <linux/wait.h> @@ -83,7 +84,7 @@ static int sirf_write_raw(struct gnss_device *gdev, const unsigned char *buf, int ret; /* write is only buffered synchronously */ - ret = serdev_device_write(serdev, buf, count, 0); + ret = serdev_device_write(serdev, buf, count, MAX_SCHEDULE_TIMEOUT); if (ret < 0) return ret; |