media: saa7134-alsa.c: number of pages should be unsigned long

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 <mchehab+huawei@kernel.org>

diff --git a/drivers/media/pci/saa7134/saa7134-alsa.c b/drivers/media/pci/saa7134/saa7134-alsa.c
index 544ca57..347ecb0 100644 (file)
--- 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 77c325e..d29499c 100644 (file)
--- 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;