[20/38] media: saa7134-alsa.c: number of pages should be unsigned long

Commit Message

Mauro Carvalho Chehab Sept. 2, 2020, 4:10 p.m. UTC

As reported by smatch:

	drivers/media/pci/saa7134/saa7134-alsa.c:267 saa7134_alsa_dma_init() warn: should 'nr_pages << 12' be a 64 bit type?

the number of patches should be unsigned long.

Signed-off-by: Mauro Carvalho Chehab <[e-mail]>
---
 drivers/media/pci/saa7134/saa7134-alsa.c | 7 ++++---
 drivers/media/pci/saa7134/saa7134.h      | 2 +-
 2 files changed, 5 insertions(+), 4 deletions(-)

Patch

diff --git a/drivers/media/pci/saa7134/saa7134-alsa.c b/drivers/media/pci/saa7134/saa7134-alsa.c
index 544ca57eee75..347ecb0bab2f 100644
--- a/drivers/media/pci/saa7134/saa7134-alsa.c
+++ b/drivers/media/pci/saa7134/saa7134-alsa.c
@@ -252,7 +252,8 @@  static int snd_card_saa7134_capture_trigger(struct snd_pcm_substream * substream
 	return err;
 }
 
-static int saa7134_alsa_dma_init(struct saa7134_dev *dev, int nr_pages)
+static int saa7134_alsa_dma_init(struct saa7134_dev *dev,
+				 unsigned long nr_pages)
 {
 	struct saa7134_dmasound *dma = &dev->dmasound;
 	struct page *pg;
@@ -260,11 +261,11 @@  static int saa7134_alsa_dma_init(struct saa7134_dev *dev, int nr_pages)
 
 	dma->vaddr = vmalloc_32(nr_pages << PAGE_SHIFT);
 	if (NULL == dma->vaddr) {
-		pr_debug("vmalloc_32(%d pages) failed\n", nr_pages);
+		pr_debug("vmalloc_32(%lu pages) failed\n", nr_pages);
 		return -ENOMEM;
 	}
 
-	pr_debug("vmalloc is at addr %p, size=%d\n",
+	pr_debug("vmalloc is at addr %p, size=%lu\n",
 		 dma->vaddr, nr_pages << PAGE_SHIFT);
 
 	memset(dma->vaddr, 0, nr_pages << PAGE_SHIFT);
diff --git a/drivers/media/pci/saa7134/saa7134.h b/drivers/media/pci/saa7134/saa7134.h
index 77c325e64a97..d29499cd7370 100644
--- a/drivers/media/pci/saa7134/saa7134.h
+++ b/drivers/media/pci/saa7134/saa7134.h
@@ -509,7 +509,7 @@  struct saa7134_dmasound {
 	void			   *vaddr;
 	struct scatterlist	   *sglist;
 	int                        sglen;
-	int                        nr_pages;
+	unsigned long              nr_pages;
 	unsigned int               dma_blk;
 	unsigned int               read_offset;
 	unsigned int               read_count;