[PATCH] coresight: Use devm_bitmap_zalloc when applicable
From: Christophe JAILLET <hidden>
Date: 2021-10-23 19:24:35
Also in:
kernel-janitors, lkml
Subsystem:
arm/coresight framework and drivers, hardware tracing facilities, the rest · Maintainers:
Suzuki K Poulose, Alexander Shishkin, Linus Torvalds
'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 <redacted> --- drivers/hwtracing/coresight/coresight-stm.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index 58062a5a8238..db9eada24275 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c@@ -862,7 +862,6 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id) 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);
@@ -904,9 +903,7 @@ 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); + guaranteed = devm_bitmap_zalloc(dev, drvdata->numsp, GFP_KERNEL); if (!guaranteed) return -ENOMEM; drvdata->chs.guaranteed = guaranteed;
--
2.30.2
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