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| author | Fabio Estevam <fabio.estevam@nxp.com> | 2016-12-28 14:48:48 -0200 |
|---|---|---|
| committer | Stefan Agner <stefan@agner.ch> | 2017-02-07 20:28:04 -0800 |
| commit | ef15d36154cc741d7ded4ae4fa0cf7987354e313 (patch) | |
| tree | 1c0ae48431cadad1195f2eb606ff7196215321f6 /drivers | |
| parent | 5d2883d51d60ce34a773d4a07b468216109d9030 (diff) | |
| download | linux-ef15d36154cc741d7ded4ae4fa0cf7987354e313.tar.bz2 | |
drm/fsl-dcu: check for clk_prepare_enable() error
clk_prepare_enable() may fail, so we should better check its return
value.
Also place the of_node_put() function right after clk_prepare_enable(),
in order to avoid calling of_node_put() twice in case clk_prepare_enable()
fails.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_tcon.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_tcon.c b/drivers/gpu/drm/fsl-dcu/fsl_tcon.c index 2fbb7eedb066..b3d70a63c5a3 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_tcon.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_tcon.c @@ -87,9 +87,13 @@ struct fsl_tcon *fsl_tcon_init(struct device *dev) goto err_node_put; } - of_node_put(np); - clk_prepare_enable(tcon->ipg_clk); + ret = clk_prepare_enable(tcon->ipg_clk); + if (ret) { + dev_err(dev, "Couldn't enable the TCON clock\n"); + goto err_node_put; + } + of_node_put(np); dev_info(dev, "Using TCON in bypass mode\n"); return tcon; |