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authorSachin Kamat <sachin.kamat@linaro.org>2013-05-17 00:31:02 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-06-12 21:51:02 -0300
commit0781c057e3fd49e096ec2ea7fa5d6ad18a2f42bb (patch)
tree0f335cc7e2c9db64f1e3a2b1f96395b20141e12e
parent44048752345460df738b87ebec82c9bfc8257943 (diff)
[media] s5p-tv: Fix incorrect usage of IS_ERR_OR_NULL in mixer_drv.c
NULL check on clocks obtained using common clock APIs should not be done. Use IS_ERR only. [s.nawrocki: removed unrelated whitespace change] Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/platform/s5p-tv/mixer_drv.c22
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/media/platform/s5p-tv/mixer_drv.c b/drivers/media/platform/s5p-tv/mixer_drv.c
index 5733033a6ea..51805a5e2be 100644
--- a/drivers/media/platform/s5p-tv/mixer_drv.c
+++ b/drivers/media/platform/s5p-tv/mixer_drv.c
@@ -211,6 +211,15 @@ fail:
return ret;
}
+static void mxr_resource_clear_clocks(struct mxr_resources *res)
+{
+ res->mixer = ERR_PTR(-EINVAL);
+ res->vp = ERR_PTR(-EINVAL);
+ res->sclk_mixer = ERR_PTR(-EINVAL);
+ res->sclk_hdmi = ERR_PTR(-EINVAL);
+ res->sclk_dac = ERR_PTR(-EINVAL);
+}
+
static void mxr_release_plat_resources(struct mxr_device *mdev)
{
free_irq(mdev->res.irq, mdev);
@@ -222,15 +231,15 @@ static void mxr_release_clocks(struct mxr_device *mdev)
{
struct mxr_resources *res = &mdev->res;
- if (!IS_ERR_OR_NULL(res->sclk_dac))
+ if (!IS_ERR(res->sclk_dac))
clk_put(res->sclk_dac);
- if (!IS_ERR_OR_NULL(res->sclk_hdmi))
+ if (!IS_ERR(res->sclk_hdmi))
clk_put(res->sclk_hdmi);
- if (!IS_ERR_OR_NULL(res->sclk_mixer))
+ if (!IS_ERR(res->sclk_mixer))
clk_put(res->sclk_mixer);
- if (!IS_ERR_OR_NULL(res->vp))
+ if (!IS_ERR(res->vp))
clk_put(res->vp);
- if (!IS_ERR_OR_NULL(res->mixer))
+ if (!IS_ERR(res->mixer))
clk_put(res->mixer);
}
@@ -239,6 +248,8 @@ static int mxr_acquire_clocks(struct mxr_device *mdev)
struct mxr_resources *res = &mdev->res;
struct device *dev = mdev->dev;
+ mxr_resource_clear_clocks(res);
+
res->mixer = clk_get(dev, "mixer");
if (IS_ERR(res->mixer)) {
mxr_err(mdev, "failed to get clock 'mixer'\n");
@@ -299,6 +310,7 @@ static void mxr_release_resources(struct mxr_device *mdev)
mxr_release_clocks(mdev);
mxr_release_plat_resources(mdev);
memset(&mdev->res, 0, sizeof(mdev->res));
+ mxr_resource_clear_clocks(&mdev->res);
}
static void mxr_release_layers(struct mxr_device *mdev)