[PATCH 1/2] hwrng: intel - return -ENOMEM when ioremap() fails

[Thorsten Blum <blum@kernel.org>]

intel_init_hw_struct() incorrectly returns -EBUSY when ioremap() fails.
Return -ENOMEM instead.

Fixes: 641dd002d207 ("[PATCH] fix Intel RNG detection")
Signed-off-by: Thorsten Blum <blum@kernel.org>
---
 drivers/char/hw_random/intel-rng.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/char/hw_random/intel-rng.c b/drivers/char/hw_random/intel-rng.c
index d24e747203c1..a4dd21a9de98 100644
--- a/drivers/char/hw_random/intel-rng.c
+++ b/drivers/char/hw_random/intel-rng.c
@@ -318,8 +318,8 @@ PFX "RNG, try using the 'no_fwh_detect' option.\n";
 	}
 
 	intel_rng_hw->mem = ioremap(INTEL_FWH_ADDR, INTEL_FWH_ADDR_LEN);
-	if (intel_rng_hw->mem == NULL)
-		return -EBUSY;
+	if (!intel_rng_hw->mem)
+		return -ENOMEM;
 
 	return 0;
 }