Commit 01ccca3c authored by Lv Ruyi's avatar Lv Ruyi Committed by Wei Liu
Browse files

Drivers: hv : vmbus: Adding NULL pointer check 



This patch fixes the following Coccinelle warning:
drivers/hv/ring_buffer.c:223: alloc with no test

Reported-by: default avatarZeal Robot <zealci@zte.com.cn>
Signed-off-by: default avatarLv Ruyi <lv.ruyi@zte.com.cn>
Link: https://lore.kernel.org/r/20211028104138.14576-1-lv.ruyi@zte.com.cn


Signed-off-by: default avatarWei Liu <wei.liu@kernel.org>
parent 0b906085

drivers/hv/ring_buffer.c

+2 −0
Original line number Diff line number Diff line
@@ -223,6 +223,8 @@ int hv_ringbuffer_init(struct hv_ring_buffer_info *ring_info, 
		pages_wraparound = kcalloc(page_cnt * 2 - 1,

					   sizeof(struct page *),

					   GFP_KERNEL);

		if (!pages_wraparound)

			return -ENOMEM;



		pages_wraparound[0] = pages;

		for (i = 0; i < 2 * (page_cnt - 1); i++)