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Date: Mon, 14 Aug 2017 11:46:56 -0400 From: James Simmons <jsimmons@...radead.org> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, devel@...verdev.osuosl.org, Andreas Dilger <andreas.dilger@...el.com>, Oleg Drokin <oleg.drokin@...el.com> Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Lustre Development List <lustre-devel@...ts.lustre.org>, James Simmons <jsimmons@...radead.org>, James Simmons <uja.ornl@...oo.com> Subject: [PATCH 28/64] staging: lustre: uapi: check if argument for lustre_cfg_buf() is NULL Check if lcfg passed in is NULL and if it is just return NULL. Signed-off-by: James Simmons <uja.ornl@...oo.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: https://review.whamcloud.com/22138 Reviewed-by: Dmitry Eremin <dmitry.eremin@...el.com> Reviewed-by: Jinshan Xiong <jinshan.xiong@...el.com> Reviewed-by: Fan Yong <fan.yong@...el.com> Reviewed-by: Oleg Drokin <oleg.drokin@...el.com> Signed-off-by: James Simmons <jsimmons@...radead.org> --- drivers/staging/lustre/include/uapi/linux/lustre/lustre_cfg.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/staging/lustre/include/uapi/linux/lustre/lustre_cfg.h b/drivers/staging/lustre/include/uapi/linux/lustre/lustre_cfg.h index 4d23938..4208d61 100644 --- a/drivers/staging/lustre/include/uapi/linux/lustre/lustre_cfg.h +++ b/drivers/staging/lustre/include/uapi/linux/lustre/lustre_cfg.h @@ -161,6 +161,9 @@ static inline void *lustre_cfg_buf(struct lustre_cfg *lcfg, __u32 index) size_t offset; __u32 bufcount; + if (!lcfg) + return NULL; + bufcount = lcfg->lcfg_bufcount; if (index >= bufcount) return NULL; -- 1.8.3.1
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