/* Set tai offset * by: John Stultz * (C) Copyright Linaro 2013 * Licensed under the GPLv2 * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include #include #include #include #ifdef KTEST #include "../kselftest.h" #else static inline int ksft_exit_pass(void) { exit(0); } static inline int ksft_exit_fail(void) { exit(1); } #endif int set_tai(int offset) { struct timex tx; memset(&tx, 0, sizeof(tx)); tx.modes = ADJ_TAI; tx.constant = offset; return adjtimex(&tx); } int get_tai(void) { struct timex tx; memset(&tx, 0, sizeof(tx)); adjtimex(&tx); return tx.tai; } int main(int argc, char **argv) { int i, ret; ret = get_tai(); printf("tai offset started at %i\n", ret); printf("Checking tai offsets can be properly set: "); for (i = 1; i <= 60; i++) { ret = set_tai(i); ret = get_tai(); if (ret != i) { printf("[FAILED] expected: %i got %i\n", i, ret); return ksft_exit_fail(); } } printf("[OK]\n"); return ksft_exit_pass(); } id=064c3db9c564cc5be514ac21fb4aa26cc33db746'>refslogtreecommitdiff
path: root/drivers/usb/c67x00/c67x00-drv.c
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authorArvind Yadav <arvind.yadav.cs@gmail.com>2016-12-12 23:13:27 +0530
committerTejun Heo <tj@kernel.org>2017-01-06 15:45:32 -0500
commit064c3db9c564cc5be514ac21fb4aa26cc33db746 (patch)
tree9875da27d40d874837ecca529ba42e54bcc56b10 /drivers/usb/c67x00/c67x00-drv.c
parent2dae99558e86894e9e5dbf097477baaa5eb70134 (diff)
ata: sata_mv:- Handle return value of devm_ioremap.
Here, If devm_ioremap will fail. It will return NULL. Then hpriv->base = NULL - 0x20000; Kernel can run into a NULL-pointer dereference. This error check will avoid NULL pointer dereference. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/usb/c67x00/c67x00-drv.c')