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hwrng: imx-rngc - fix an error path

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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: 1d5449445b ("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>
This commit is contained in:
Martin Kaiser 2020-03-05 21:58:20 +01:00 committed by Herbert Xu
parent ace74b627c
commit 47a1f8e8b3
1 changed files with 3 additions and 1 deletions
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4
drivers/char/hw_random/imx-rngc.c
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@ -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;
}