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authorLucas Tanure <tanure@linux.com>2016-02-15 19:11:51 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-02-20 14:09:14 -0800
commitf45f40ad65336699757af948b81414c5999f1d48 (patch)
treebd96d36e9dc9d200a31ed2233925b693b5f2c3b4 /drivers/hwtracing/stm
parentppdev: use dev_* macros (diff)
downloadlinux-dev-f45f40ad65336699757af948b81414c5999f1d48.tar.xz
linux-dev-f45f40ad65336699757af948b81414c5999f1d48.zip
stm class: Use a signed return type for stm_find_master_chan
The return type "unsigned int" was used by the stm_find_master_chan function despite of the aspect that it will eventually return a negative error code. Done with the help of Coccinelle. Signed-off-by: Lucas Tanure <tanure@linux.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/stm')
-rw-r--r--drivers/hwtracing/stm/core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c
index aef8ddb24451..cdec240bd6b6 100644
--- a/drivers/hwtracing/stm/core.c
+++ b/drivers/hwtracing/stm/core.c
@@ -233,7 +233,7 @@ static int find_free_channels(unsigned long *bitmap, unsigned int start,
return -1;
}
-static unsigned int
+static int
stm_find_master_chan(struct stm_device *stm, unsigned int width,
unsigned int *mstart, unsigned int mend,
unsigned int *cstart, unsigned int cend)
@@ -293,7 +293,7 @@ static int stm_output_assign(struct stm_device *stm, unsigned int width,
goto unlock;
ret = stm_find_master_chan(stm, width, &midx, mend, &cidx, cend);
- if (ret)
+ if (ret < 0)
goto unlock;
output->master = midx;