[PATCH v4 5/8] remoteproc: da8xx: add the missing retval check for clk_enable()
From: Bartosz Golaszewski <hidden>
Date: 2018-03-23 13:09:07
Also in:
linux-clk, linux-devicetree, linux-remoteproc, lkml
Subsystem:
remote processor (remoteproc) subsystem, the rest · Maintainers:
Bjorn Andersson, Mathieu Poirier, Linus Torvalds
From: Bartosz Golaszewski <redacted> The davinci platform is being switched to using the common clock framework, where clk_enable() can fail. Add the return value check. Signed-off-by: Bartosz Golaszewski <redacted> --- drivers/remoteproc/da8xx_remoteproc.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/remoteproc/da8xx_remoteproc.c b/drivers/remoteproc/da8xx_remoteproc.c
index bf3b9034c319..2b24291337b7 100644
--- a/drivers/remoteproc/da8xx_remoteproc.c
+++ b/drivers/remoteproc/da8xx_remoteproc.c@@ -138,6 +138,7 @@ static int da8xx_rproc_start(struct rproc *rproc) struct device *dev = rproc->dev.parent; struct da8xx_rproc *drproc = (struct da8xx_rproc *)rproc->priv; struct clk *dsp_clk = drproc->dsp_clk; + int ret; /* hw requires the start (boot) address be on 1KB boundary */ if (rproc->bootaddr & 0x3ff) {
@@ -148,7 +149,12 @@ static int da8xx_rproc_start(struct rproc *rproc) writel(rproc->bootaddr, drproc->bootreg); - clk_enable(dsp_clk); + ret = clk_enable(dsp_clk); + if (ret) { + dev_err(dev, "clk_enable() failed: %d\n", ret); + return ret; + } + davinci_clk_reset_deassert(dsp_clk); return 0;
--
2.16.1