Commit 2572c7fb authored Mar 10, 2016 by Sudip Mukherjee Committed by Jon Mason Mar 17, 2016

ntb: fix possible NULL dereference



kmalloc can fail and we should check for NULL before using the pointer
returned by kmalloc.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>

parent ee5f750f

drivers/ntb/test/ntb_perf.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -550,6 +550,8 @@ static ssize_t debugfs_run_read(struct file filp, char __user ubuf,
		return 0;

		buf = kmalloc(64, GFP_KERNEL);
		if (!buf)
		return -ENOMEM;
		out_offset = snprintf(buf, 64, "%d\n", perf->run);
		ret = simple_read_from_buffer(ubuf, count, offp, buf, out_offset);
		kfree(buf);