From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit c7521d3aa2fa7fc785682758c99b5bcae503f6be ]
The ptp_ocp_get_mem() function does not return NULL, it returns error pointers.
Fixes: 773bda964921 ("ptp: ocp: Expose various resources on the timecard.") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/ptp/ptp_ocp.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c index caf9b37c5eb1e..e238ae8e94709 100644 --- a/drivers/ptp/ptp_ocp.c +++ b/drivers/ptp/ptp_ocp.c @@ -1049,10 +1049,11 @@ ptp_ocp_register_ext(struct ptp_ocp *bp, struct ocp_resource *r) if (!ext) return -ENOMEM;
- err = -EINVAL; ext->mem = ptp_ocp_get_mem(bp, r); - if (!ext->mem) + if (IS_ERR(ext->mem)) { + err = PTR_ERR(ext->mem); goto out; + }
ext->bp = bp; ext->info = r->extra; @@ -1122,8 +1123,8 @@ ptp_ocp_register_mem(struct ptp_ocp *bp, struct ocp_resource *r) void __iomem *mem;
mem = ptp_ocp_get_mem(bp, r); - if (!mem) - return -EINVAL; + if (IS_ERR(mem)) + return PTR_ERR(mem);
bp_assign_entry(bp, r, mem);