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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2021-11-03 19:39:18 +0100
committerMathieu Poirier <mathieu.poirier@linaro.org>2021-11-16 10:13:21 -0700
commit934a5dc1546b1c637999bfcebcdd1598eaab4818 (patch)
treea16fdaa640a455745570887ed9207d9673aa3938 /drivers/hwtracing
parentfa55b7dcdc43c1aa1ba12bca9d2dd4318c2a0dbf (diff)
downloadlinux-934a5dc1546b1c637999bfcebcdd1598eaab4818.tar.bz2
coresight: Use devm_bitmap_zalloc when applicable
'drvdata->chs.guaranteed' is a bitmap. So use 'devm_bitmap_kzalloc()' to simplify code, improve the semantic and avoid some open-coded arithmetic in allocator arguments. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/a4b8454f560b70cedf0e4d06275787f08d576ee5.1635964610.git.christophe.jaillet@wanadoo.fr Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'drivers/hwtracing')
-rw-r--r--drivers/hwtracing/coresight/coresight-stm.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index 58062a5a8238..bb14a3a8a921 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -856,13 +856,11 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
{
int ret;
void __iomem *base;
- unsigned long *guaranteed;
struct device *dev = &adev->dev;
struct coresight_platform_data *pdata = NULL;
struct stm_drvdata *drvdata;
struct resource *res = &adev->res;
struct resource ch_res;
- size_t bitmap_size;
struct coresight_desc desc = { 0 };
desc.name = coresight_alloc_device_name(&stm_devs, dev);
@@ -904,12 +902,10 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
else
drvdata->numsp = stm_num_stimulus_port(drvdata);
- bitmap_size = BITS_TO_LONGS(drvdata->numsp) * sizeof(long);
-
- guaranteed = devm_kzalloc(dev, bitmap_size, GFP_KERNEL);
- if (!guaranteed)
+ drvdata->chs.guaranteed = devm_bitmap_zalloc(dev, drvdata->numsp,
+ GFP_KERNEL);
+ if (!drvdata->chs.guaranteed)
return -ENOMEM;
- drvdata->chs.guaranteed = guaranteed;
spin_lock_init(&drvdata->spinlock);