[PATCH 06/19] staging: media: omap4iss: fix handling platform_get_irq result

[Andrzej Hajda]

The function can return negative value.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107

Signed-off-by: Andrzej Hajda 
---
Hi,

To avoid problems with too many mail recipients I have sent whole
patchset only to LKML. Anyway patches have no dependencies.

Regards
Andrzej
---
 drivers/staging/media/omap4iss/iss.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/omap4iss/iss.c 
b/drivers/staging/media/omap4iss/iss.c
index 9bfb725..0b03cb7 100644
--- a/drivers/staging/media/omap4iss/iss.c
+++ b/drivers/staging/media/omap4iss/iss.c
@@ -1440,12 +1440,13 @@ static int iss_probe(struct platform_device *pdev)
 iss_reg_read(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_REVISION));
 
/* Interrupt */
-   iss->irq_num = platform_get_irq(pdev, 0);
-   if (iss->irq_num <= 0) {
+   ret = platform_get_irq(pdev, 0);
+   if (ret <= 0) {
dev_err(iss->dev, "No IRQ resource\n");
ret = -ENODEV;
goto error_iss;
}
+   iss->irq_num = ret;
 
if (devm_request_irq(iss->dev, iss->irq_num, iss_isr, IRQF_SHARED,
 "OMAP4 ISS", iss)) {
-- 
1.9.1

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Re: [PATCH 06/19] staging: media: omap4iss: fix handling platform_get_irq result

[Dan Carpenter]

On Thu, Sep 24, 2015 at 04:00:14PM +0200, Andrzej Hajda wrote:
> Hi,
> 
> To avoid problems with too many mail recipients I have sent whole
> patchset only to LKML. Anyway patches have no dependencies.
> 

I'm pretty sure mailman or whatever counts CCs as recipients as well.

regards,
dan carpenter

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