diff mbox series

[v2,1/5] hwrng: imx-rngc - fix an error path

Message ID 20200305205824.4371-2-martin@kaiser.cx (mailing list archive)
State Mainlined
Commit 47a1f8e8b3637ff5f7806587883d7d94068d9ee8
Headers show
Series [v2,1/5] hwrng: imx-rngc - fix an error path | expand

Commit Message

Martin Kaiser March 5, 2020, 8:58 p.m. UTC
Make sure that the rngc interrupt is masked if the rngc self test fails.
Self test failure means that probe fails as well. Interrupts should be
masked in this case, regardless of the error.

Cc: stable@vger.kernel.org
Fixes: 1d5449445bd0 ("hwrng: mx-rngc - add a driver for Freescale RNGC")
Reviewed-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
---
 drivers/char/hw_random/imx-rngc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/char/hw_random/imx-rngc.c b/drivers/char/hw_random/imx-rngc.c
index 30cf00f8e9a0..0576801944fd 100644
--- a/drivers/char/hw_random/imx-rngc.c
+++ b/drivers/char/hw_random/imx-rngc.c
@@ -105,8 +105,10 @@  static int imx_rngc_self_test(struct imx_rngc *rngc)
 		return -ETIMEDOUT;
 	}
 
-	if (rngc->err_reg != 0)
+	if (rngc->err_reg != 0) {
+		imx_rngc_irq_mask_clear(rngc);
 		return -EIO;
+	}
 
 	return 0;
 }