Re: [PATCH 3/6] treewide: fix incorrect use to determine if list is empty
From: Dan Carpenter <hidden>
Date: 2022-02-28 11:40:45
Also in:
alsa-devel, amd-gfx, dmaengine, dri-devel, intel-gfx, intel-wired-lan, kvm, linux-arch, linux-aspeed, linux-block, linux-cifs, linux-crypto, linux-f2fs-devel, linux-fsdevel, linux-iio, linux-media, linux-mediatek, linux-pm, linux-rdma, linux-scsi, linux-staging, linux-tegra, linux-usb, linux-wireless, lkml, netdev, nouveau
On Mon, Feb 28, 2022 at 12:08:19PM +0100, Jakob Koschel wrote:
The list iterator value will *always* be set by list_for_each_entry(). It is incorrect to assume that the iterator value will be NULL if the list is empty. Instead of checking the pointer it should be checked if the list is empty. In acpi_get_pmu_hw_inf() instead of setting the pointer to NULL on the break, it is set to the correct value and leaving it NULL if no element was found. Signed-off-by: Jakob Koschel <redacted> --- arch/powerpc/sysdev/fsl_gtm.c | 4 ++-- drivers/media/pci/saa7134/saa7134-alsa.c | 4 ++-- drivers/perf/xgene_pmu.c | 13 +++++++------ 3 files changed, 11 insertions(+), 10 deletions(-)
These are all bug fixes. 1) Send them as 3 separate patches. 2) Add Fixes tags. regards, dan carpenter