media: cx25821-alsa: number of pages should be unsigned long

As reported by smatch:

	drivers/media/pci/cx25821/cx25821-alsa.c:146 cx25821_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/cx25821/cx25821-alsa.c b/drivers/media/pci/cx25821/cx25821-alsa.c
index 3016164..49892a8 100644 (file)
--- a/drivers/media/pci/cx25821/cx25821-alsa.c
+++ b/drivers/media/pci/cx25821/cx25821-alsa.c
@@ -53,8 +53,8 @@ struct cx25821_audio_buffer {
        struct cx25821_riscmem risc;
        void                    *vaddr;
        struct scatterlist      *sglist;
-       int                     sglen;
-       int                     nr_pages;
+       int                     sglen;
+       unsigned long           nr_pages;
 };
 
 struct cx25821_audio_dev {
@@ -131,7 +131,8 @@ MODULE_PARM_DESC(debug, "enable debug messages");
 #define PCI_MSK_AUD_EXT   (1 <<  4)
 #define PCI_MSK_AUD_INT   (1 <<  3)
 
-static int cx25821_alsa_dma_init(struct cx25821_audio_dev *chip, int nr_pages)
+static int cx25821_alsa_dma_init(struct cx25821_audio_dev *chip,
+                                unsigned long nr_pages)
 {
        struct cx25821_audio_buffer *buf = chip->buf;
        struct page *pg;
@@ -139,11 +140,11 @@ static int cx25821_alsa_dma_init(struct cx25821_audio_dev *chip, int nr_pages)
 
        buf->vaddr = vmalloc_32(nr_pages << PAGE_SHIFT);
        if (NULL == buf->vaddr) {
-               dprintk(1, "vmalloc_32(%d pages) failed\n", nr_pages);
+               dprintk(1, "vmalloc_32(%lu pages) failed\n", nr_pages);
                return -ENOMEM;
        }
 
-       dprintk(1, "vmalloc is at addr 0x%p, size=%d\n",
+       dprintk(1, "vmalloc is at addr 0x%p, size=%lu\n",
                                buf->vaddr,
                                nr_pages << PAGE_SHIFT);