4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
commit 6b2bed891253c08e7f4c17dbd46b71fc87f22eef upstream.
The devm_ioremap_resource() returns error pointers, never NULL. The
platform_get_resource() returns NULL on error, never error pointers.
The error code needs to be set, as well. The current code returns
PTR_ERR(NULL) which is success.
Fixes: 57b2c0628b60 ("[media] st-hva: multi-format video encoder V4L2 driver")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Acked-by: Jean-Christophe Trotin <jean-christophe.trotin@xxxxxx>
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/media/platform/sti/hva/hva-hw.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/media/platform/sti/hva/hva-hw.c
+++ b/drivers/media/platform/sti/hva/hva-hw.c
@@ -305,16 +305,16 @@ int hva_hw_probe(struct platform_device
/* get memory for registers */
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
hva->regs = devm_ioremap_resource(dev, regs);
- if (IS_ERR_OR_NULL(hva->regs)) {
+ if (IS_ERR(hva->regs)) {
dev_err(dev, "%s failed to get regs\n", HVA_PREFIX);
return PTR_ERR(hva->regs);
}
/* get memory for esram */
esram = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (IS_ERR_OR_NULL(esram)) {
+ if (!esram) {
dev_err(dev, "%s failed to get esram\n", HVA_PREFIX);
- return PTR_ERR(esram);
+ return -ENODEV;
}
hva->esram_addr = esram->start;
hva->esram_size = resource_size(esram);
--
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