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authorMike Frysinger <vapier@gentoo.org>2012-08-04 21:54:05 -0400
committerPaul Mundt <lethal@linux-sh.org>2012-08-09 13:11:11 +0900
commit800fb3ddee2c50918d651fbd70515f1e38857305 (patch)
treef3d1cbadb92bb9bb04532e45b88e2c90e23c100f /arch
parentf4ba394c1b02e7fc2179fda8d3941a5b3b65efb6 (diff)
sh: dma: fix request_irq usage
When calling request_irq with IRQF_SHARED, the dev cookie must be set (i.e. non-NULL), otherwise the code rejects it immediately with -EINVAL. So restore the logic here where we'd pass a pointer to the name as a dummy unique val. Otherwise, booting up on my LANDISK system would fail with: DMAC Address Error0 request_irq fail This was introduced in commit 7f47c7189b3e8f19a589f77a3ad169d7b691b582. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/sh/drivers/dma/dma-sh.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sh/drivers/dma/dma-sh.c b/arch/sh/drivers/dma/dma-sh.c
index 4c171f13b0e8..b22565623142 100644
--- a/arch/sh/drivers/dma/dma-sh.c
+++ b/arch/sh/drivers/dma/dma-sh.c
@@ -335,7 +335,7 @@ static int dmae_irq_init(void)
for (n = 0; n < NR_DMAE; n++) {
int i = request_irq(get_dma_error_irq(n), dma_err,
- IRQF_SHARED, dmae_name[n], NULL);
+ IRQF_SHARED, dmae_name[n], (void *)dmae_name[n]);
if (unlikely(i < 0)) {
printk(KERN_ERR "%s request_irq fail\n", dmae_name[n]);
return i;