Commit 6f874baf authored May 30, 2017 by Gustavo A. R. Silva Committed by Samuel Ortiz Jun 23, 2017

NFC: add NULL checks to avoid potential NULL pointer dereference



NULL checks at line 457: if (!link0 || !link1) {, implies that both
pointers link0 and link1 might be NULL.
Function nfcsim_link_free() dereference pointers link0 and link1.
Add NULL checks before calling nfcsim_link_free() to avoid a
potential NULL pointer dereference.

Addresses-Coverity-ID: 1364857
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

parent 03036184

drivers/nfc/nfcsim.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -482,7 +482,9 @@ static int __init nfcsim_init(void)
		exit_err:
		pr_err("Failed to initialize nfcsim driver (%d)\n", rc);

		if (link0)
		nfcsim_link_free(link0);
		if (link1)
		nfcsim_link_free(link1);

		return rc;