[PATCH 5/5] OMAP : serial : Check for error in get_context_loss_count
From: Shubhrajyoti D <hidden>
Date: 2012-01-16 10:22:40
Also in:
linux-omap, linux-serial
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
In serial_omap_runtime_resume in case of errors returned by get_context_loss_count print a warning and do a restore. Signed-off-by: Shubhrajyoti D <redacted> --- drivers/tty/serial/omap-serial.c | 10 ++++++++-- 1 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 8c6f137..e1c1a0f 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c@@ -1602,10 +1602,16 @@ static int serial_omap_runtime_resume(struct device *dev) if (up) { if (pdata->get_context_loss_count) { - u32 loss_cnt = pdata->get_context_loss_count(dev); + int loss_cnt = pdata->get_context_loss_count(dev); - if (up->context_loss_cnt != loss_cnt) + if (loss_cnt < 0) { + dev_err(dev, + "get_context_loss_count failed : %d\n", + loss_cnt); serial_omap_restore_context(up); + } else if (up->context_loss_cnt != loss_cnt) { + serial_omap_restore_context(up); + } } /* Errata i291 */
--
1.7.1