Check and handle (well, report at least, as it's done through the rest of the module) possible 'spu_write_u16()' errors in 'if_spi_e2h()'. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Dmitry Antipov <dmantipov@xxxxxxxxx> --- drivers/net/wireless/marvell/libertas/if_spi.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/marvell/libertas/if_spi.c b/drivers/net/wireless/marvell/libertas/if_spi.c index 3d53e444ba19..8690b0114e23 100644 --- a/drivers/net/wireless/marvell/libertas/if_spi.c +++ b/drivers/net/wireless/marvell/libertas/if_spi.c @@ -826,11 +826,16 @@ static void if_spi_e2h(struct if_spi_card *card) goto out; /* re-enable the card event interrupt */ - spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, - ~IF_SPI_HICU_CARD_EVENT); + err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, + ~IF_SPI_HICU_CARD_EVENT); + if (err) + goto out; /* generate a card interrupt */ - spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG, IF_SPI_CIC_HOST_EVENT); + err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG, + IF_SPI_CIC_HOST_EVENT); + if (err) + goto out; lbs_queue_event(priv, cause & 0xff); out: -- 2.41.0
