Message ID | 20230724144108.2582917-1-ruanjinjie@huawei.com (mailing list archive) |
---|---|
State | Accepted |
Commit | c05ce6907b3d6e148b70f0bb5eafd61dcef1ddc1 |
Headers | show |
Series | [-next] dmaengine: ste_dma40: Add missing IRQ check in d40_probe | expand |
Ping. On 2023/7/24 22:41, Ruan Jinjie wrote: > From: ruanjinjie <ruanjinjie@huawei.com> > > Check for the return value of platform_get_irq(): if no interrupt > is specified, it wouldn't make sense to call request_irq(). > > Fixes: 8d318a50b3d7 ("DMAENGINE: Support for ST-Ericssons DMA40 block v3") > Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com> > --- > drivers/dma/ste_dma40.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c > index 825001bde42c..89e82508c133 100644 > --- a/drivers/dma/ste_dma40.c > +++ b/drivers/dma/ste_dma40.c > @@ -3590,6 +3590,10 @@ static int __init d40_probe(struct platform_device *pdev) > spin_lock_init(&base->lcla_pool.lock); > > base->irq = platform_get_irq(pdev, 0); > + if (base->irq < 0) { > + ret = base->irq; > + goto destroy_cache; > + } > > ret = request_irq(base->irq, d40_handle_interrupt, 0, D40_NAME, base); > if (ret) {
On Mon, Jul 24, 2023 at 8:40 AM Ruan Jinjie <ruanjinjie@huawei.com> wrote: > From: ruanjinjie <ruanjinjie@huawei.com> > > Check for the return value of platform_get_irq(): if no interrupt > is specified, it wouldn't make sense to call request_irq(). > > Fixes: 8d318a50b3d7 ("DMAENGINE: Support for ST-Ericssons DMA40 block v3") > Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Yours, Linus Walleij
On Mon, 24 Jul 2023 14:41:08 +0000, Ruan Jinjie wrote: > Check for the return value of platform_get_irq(): if no interrupt > is specified, it wouldn't make sense to call request_irq(). > > Applied, thanks! [1/1] dmaengine: ste_dma40: Add missing IRQ check in d40_probe commit: c05ce6907b3d6e148b70f0bb5eafd61dcef1ddc1 Best regards,
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 825001bde42c..89e82508c133 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -3590,6 +3590,10 @@ static int __init d40_probe(struct platform_device *pdev) spin_lock_init(&base->lcla_pool.lock); base->irq = platform_get_irq(pdev, 0); + if (base->irq < 0) { + ret = base->irq; + goto destroy_cache; + } ret = request_irq(base->irq, d40_handle_interrupt, 0, D40_NAME, base); if (ret) {