[PATCH 1/2] OMAPDSS: TPO-TD03MTEA1: Check for errors from regulator_enable()
STALE5311d
From: Mark Brown <hidden>
Date: 2012-03-19 15:02:31
Also in:
linux-omap
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
It is possible for regulator_enable() to fail and if it does fail that's generally a bad sign for anything we try to do with the hardware afterwards so check for and immediately return an error if regulator_enable() fails. Signed-off-by: Mark Brown <redacted> --- .../video/omap2/displays/panel-tpo-td043mtea1.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c
index 32f3fcd..74c6b87 100644
--- a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c
+++ b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c@@ -272,11 +272,14 @@ static const struct omap_video_timings tpo_td043_timings = { static int tpo_td043_power_on(struct tpo_td043_device *tpo_td043) { int nreset_gpio = tpo_td043->nreset_gpio; + int r; if (tpo_td043->powered_on) return 0; - regulator_enable(tpo_td043->vcc_reg); + r = regulator_enable(tpo_td043->vcc_reg); + if (r != 0) + return r; /* wait for regulator to stabilize */ msleep(160);
--
1.7.9.1