| Message ID | 20180321120807.18032-6-brgl@bgdev.pl (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 03/21/2018 07:08 AM, Bartosz Golaszewski wrote: > From: Bartosz Golaszewski <bgolaszewski@baylibre.com> > > 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 <bgolaszewski@baylibre.com> > --- > 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..592bf0fc52e8 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 rv; For style points, you could use ret instead of rv to be consistent with the rest of this driver. > > /* 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); > + rv = clk_enable(dsp_clk); > + if (rv) { > + dev_err(dev, "clk_enable() failed: %d\n", rv); > + return rv; > + } > + > davinci_clk_reset_deassert(dsp_clk); > > return 0; >
diff --git a/drivers/remoteproc/da8xx_remoteproc.c b/drivers/remoteproc/da8xx_remoteproc.c index bf3b9034c319..592bf0fc52e8 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 rv; /* 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); + rv = clk_enable(dsp_clk); + if (rv) { + dev_err(dev, "clk_enable() failed: %d\n", rv); + return rv; + } + davinci_clk_reset_deassert(dsp_clk); return 0;