From: Christophe JAILLET Date: Wed, 3 Nov 2021 18:39:18 +0000 (+0100) Subject: coresight: Use devm_bitmap_zalloc when applicable X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=934a5dc1546b1c637999bfcebcdd1598eaab4818;p=linux.git 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 Link: https://lore.kernel.org/r/a4b8454f560b70cedf0e4d06275787f08d576ee5.1635964610.git.christophe.jaillet@wanadoo.fr Signed-off-by: Mathieu Poirier --- diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c index 58062a5a8238d..bb14a3a8a9210 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);