From: Martin Kaiser martin@kaiser.cx
commit 47a1f8e8b3637ff5f7806587883d7d94068d9ee8 upstream.
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 Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/char/hw_random/imx-rngc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/char/hw_random/imx-rngc.c +++ b/drivers/char/hw_random/imx-rngc.c @@ -110,8 +110,10 @@ static int imx_rngc_self_test(struct imx return -ETIMEDOUT; }
- if (rngc->err_reg != 0) + if (rngc->err_reg != 0) { + imx_rngc_irq_mask_clear(rngc); return -EIO; + }
return 0; }