Linux-Next Archive on
 help / color / Atom feed
* Coverity: venus_isr(): Null pointer dereferences
@ 2021-04-07 19:44 coverity-bot
  0 siblings, 0 replies; only message in thread
From: coverity-bot @ 2021-04-07 19:44 UTC (permalink / raw)
  To: Stanimir Varbanov
  Cc: Mauro Carvalho Chehab, Hans Verkuil, Gustavo A. R. Silva, linux-next


This is an experimental semi-automated report about issues detected by
Coverity from a scan of next-20210407 as part of the linux-next scan project:

You're getting this email because you were associated with the identified
lines of code (noted below) that were touched by commits:

  Tue Jun 20 08:53:40 2017 -0300
    d96d3f30c0f2 ("[media] media: venus: hfi: add Venus HFI files")

Coverity reported the following:

*** CID 1503707:  Null pointer dereferences  (REVERSE_INULL)
/drivers/media/platform/qcom/venus/hfi_venus.c: 1100 in venus_isr()
1094     {
1095     	struct venus_hfi_device *hdev = to_hfi_priv(core);
1096     	u32 status;
1097     	void __iomem *cpu_cs_base = hdev->core->cpu_cs_base;
1098     	void __iomem *wrapper_base = hdev->core->wrapper_base;
vvv     CID 1503707:  Null pointer dereferences  (REVERSE_INULL)
vvv     Null-checking "hdev" suggests that it may be null, but it has already been dereferenced on all paths leading to the check.
1100     	if (!hdev)
1101     		return IRQ_NONE;
1103     	status = readl(wrapper_base + WRAPPER_INTR_STATUS);
1104     	if (IS_V6(core)) {
1105     		if (status & WRAPPER_INTR_STATUS_A2H_MASK ||

If this is a false positive, please let us know so we can mark it as
such, or teach the Coverity rules to be smarter. If not, please make
sure fixes get into linux-next. :) For patches fixing this, please
include these lines (but double-check the "Fixes" first):

Reported-by: coverity-bot <>
Addresses-Coverity-ID: 1503707 ("Null pointer dereferences")
Fixes: d96d3f30c0f2 ("[media] media: venus: hfi: add Venus HFI files")

Thanks for your attention!


^ permalink raw reply	[flat|nested] only message in thread

only message in thread, back to index

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-07 19:44 Coverity: venus_isr(): Null pointer dereferences coverity-bot

Linux-Next Archive on

Archives are clonable:
	git clone --mirror linux-next/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-next linux-next/ \
	public-inbox-index linux-next

Example config snippet for mirrors

Newsgroup available over NNTP:

AGPL code for this site: git clone