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Subject[PATCH 05/24] staging: cx25821: Remove NULL check before kfree
Date
This patch was generated by the following semantic patch:
// <smpl>
@@ expression E; @@
- if (E != NULL) { kfree(E); }
+ kfree(E);

@@ expression E; @@
- if (E != NULL) { kfree(E); E = NULL; }
+ kfree(E);
+ E = NULL;
// </smpl>

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
---
drivers/staging/cx25821/cx25821-audio-upstream.c | 9 +++------
.../staging/cx25821/cx25821-video-upstream-ch2.c | 9 +++------
drivers/staging/cx25821/cx25821-video-upstream.c | 9 +++------
3 files changed, 9 insertions(+), 18 deletions(-)

diff --git a/drivers/staging/cx25821/cx25821-audio-upstream.c b/drivers/staging/cx25821/cx25821-audio-upstream.c
index 7992a3b..0f9ca77 100644
--- a/drivers/staging/cx25821/cx25821-audio-upstream.c
+++ b/drivers/staging/cx25821/cx25821-audio-upstream.c
@@ -244,13 +244,10 @@ void cx25821_stop_upstream_audio(struct cx25821_dev *dev)
dev->_audioframe_count = 0;
dev->_audiofile_status = END_OF_FILE;

- if (dev->_irq_audio_queues) {
- kfree(dev->_irq_audio_queues);
- dev->_irq_audio_queues = NULL;
- }
+ kfree(dev->_irq_audio_queues);
+ dev->_irq_audio_queues = NULL;

- if (dev->_audiofilename != NULL)
- kfree(dev->_audiofilename);
+ kfree(dev->_audiofilename);
}

void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev)
diff --git a/drivers/staging/cx25821/cx25821-video-upstream-ch2.c b/drivers/staging/cx25821/cx25821-video-upstream-ch2.c
index e2efacd..655357d 100644
--- a/drivers/staging/cx25821/cx25821-video-upstream-ch2.c
+++ b/drivers/staging/cx25821/cx25821-video-upstream-ch2.c
@@ -234,13 +234,10 @@ void cx25821_stop_upstream_video_ch2(struct cx25821_dev *dev)
dev->_frame_count_ch2 = 0;
dev->_file_status_ch2 = END_OF_FILE;

- if (dev->_irq_queues_ch2) {
- kfree(dev->_irq_queues_ch2);
- dev->_irq_queues_ch2 = NULL;
- }
+ kfree(dev->_irq_queues_ch2);
+ dev->_irq_queues_ch2 = NULL;

- if (dev->_filename_ch2 != NULL)
- kfree(dev->_filename_ch2);
+ kfree(dev->_filename_ch2);

tmp = cx_read(VID_CH_MODE_SEL);
cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
diff --git a/drivers/staging/cx25821/cx25821-video-upstream.c b/drivers/staging/cx25821/cx25821-video-upstream.c
index 31b4e3c..eb0172b 100644
--- a/drivers/staging/cx25821/cx25821-video-upstream.c
+++ b/drivers/staging/cx25821/cx25821-video-upstream.c
@@ -279,13 +279,10 @@ void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev)
dev->_frame_count = 0;
dev->_file_status = END_OF_FILE;

- if (dev->_irq_queues) {
- kfree(dev->_irq_queues);
- dev->_irq_queues = NULL;
- }
+ kfree(dev->_irq_queues);
+ dev->_irq_queues = NULL;

- if (dev->_filename != NULL)
- kfree(dev->_filename);
+ kfree(dev->_filename);

tmp = cx_read(VID_CH_MODE_SEL);
cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
--
1.7.3.4


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