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authorTobias Klauser <tklauser@distanz.ch>2013-08-12 22:45:47 +0200
committerTobias Klauser <tklauser@distanz.ch>2013-08-12 22:45:47 +0200
commitbce6f96faa3fbb50538712436ea2f4771d6491f9 (patch)
tree1e94f5b24e86a2e82a569250801ec1769d401613 /bpf_ext.h
parentb5b2d939664183d9d8f3906366faf01655886dfc (diff)
netsniff-ng: Check return value of poll()
The return value of two calls to poll() are never check, despite the (unlikely) possibility of them returning an error, fix it by checking the return value and panic()ing on error. This issue was discovered using the Coverity scanner. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'bpf_ext.h')
0 files changed, 0 insertions, 0 deletions
msg'>When a CPU goes offline a potentially pending timer interrupt is not cleared. When the CPU comes online again then the pending interrupt is delivered before the per cpu clockevent device is initialized. As a consequence the tick interrupt handler dereferences a NULL pointer. [ 51.251378] Unable to handle kernel NULL pointer dereference at virtual address 00000040 [ 51.289348] task: ee942d00 task.stack: ee960000 [ 51.293861] PC is at tick_periodic+0x38/0xb0 [ 51.298102] LR is at tick_handle_periodic+0x1c/0x90 Clear the pending interrupt in the cpu dying path. Fixes: 56a94f13919c ("clocksource: exynos_mct: Avoid blocking calls in the cpu hotplug notifier") Reported-by: Seung-Woo Kim <sw0312.kim@samsung.com> Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Cc: linux-samsung-soc@vger.kernel.org Cc: cw00.choi@samsung.com Cc: daniel.lezcano@linaro.org Cc: stable@vger.kernel.org Cc: javier@osg.samsung.com Cc: kgene@kernel.org Cc: krzk@kernel.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1484628876-22065-1-git-send-email-jy0922.shim@samsung.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'sound/pci/oxygen/se6x.c')