On 1/28/23 01:18, Nathan Chancellor wrote:
On Fri, Jan 27, 2023 at 11:14:00PM +0100, Arnd Bergmann wrote:
From: Arnd Bergmann <arnd@xxxxxxxx>
The error handling for platform_get_irq() failing no longer
works after a recent change, clang now points this out with
a warning:
drivers/gpu/host1x/dev.c:520:6: error: variable 'syncpt_irq' is uninitialized when used here [-Werror,-Wuninitialized]
if (syncpt_irq < 0)
^~~~~~~~~~
Fix this by removing the variable and checking the correct
error status.
Fixes: 625d4ffb438c ("gpu: host1x: Rewrite syncpoint interrupt handling")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
I had the same diff pending but civic duty called today :)
Reviewed-by: Nathan Chancellor <nathan@xxxxxxxxxx>
---
drivers/gpu/host1x/dev.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index 4872d183d860..aae2efeef503 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -487,7 +487,6 @@ static int host1x_get_resets(struct host1x *host)
static int host1x_probe(struct platform_device *pdev)
{
struct host1x *host;
- int syncpt_irq;
int err;
host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL);
@@ -517,8 +516,8 @@ static int host1x_probe(struct platform_device *pdev)
}
host->syncpt_irq = platform_get_irq(pdev, 0);
- if (syncpt_irq < 0)
- return syncpt_irq;
+ if (host->syncpt_irq < 0)
+ return host->syncpt_irq;
mutex_init(&host->devices_lock);
INIT_LIST_HEAD(&host->devices);
--
2.39.0
Thanks both for the fix :)
FWIW,
Reviewed-by: Mikko Perttunen <mperttunen@xxxxxxxxxx>
