[PATCH -next] firmware: google: fix a NULL vs IS_ERR() check in cbmem_entry_probe()

[Peng Wu]

The devm_memremap() function returns error pointers on error,
it doesn't return NULL.

Fixes: 19d54020883c ("firmware: google: Implement cbmem in sysfs driver")
Signed-off-by: Peng Wu <wupeng58@xxxxxxxxxx>
---
 drivers/firmware/google/cbmem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/firmware/google/cbmem.c b/drivers/firmware/google/cbmem.c
index 685f3070ce9d..88e587ba1e0d 100644
--- a/drivers/firmware/google/cbmem.c
+++ b/drivers/firmware/google/cbmem.c
@@ -106,8 +106,8 @@ static int cbmem_entry_probe(struct coreboot_device *dev)
 	entry->mem_file_buf = devm_memremap(&dev->dev, dev->cbmem_entry.address,
 					    dev->cbmem_entry.entry_size,
 					    MEMREMAP_WB);
-	if (!entry->mem_file_buf)
-		return -ENOMEM;
+	if (IS_ERR(entry->mem_file_buf))
+		return PTR_ERR(entry->mem_file_buf);
 
 	entry->size = dev->cbmem_entry.entry_size;
 
-- 
2.17.1