From 88d0518c0d91be4577de7a947af6d0255bbd0966 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Mon, 22 Feb 2016 13:43:57 -0300 Subject: [PATCH] [media] dib9000: read16/write16 could return an error code Both dib9000_read16_attr and dib9000_write16_attr can return an error code. However, they currently return an u16. This produces the following warnings on smatch: drivers/media/dvb-frontends/dib9000.c:262 dib9000_read16_attr() warn: signedness bug returning '(-121)' drivers/media/dvb-frontends/dib9000.c:321 dib9000_write16_attr() warn: signedness bug returning '(-22)' drivers/media/dvb-frontends/dib9000.c:353 dib9000_write16_attr() warn: signedness bug returning '(-121)' Reviewed-by: Michael Ira Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb-frontends/dib9000.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/dvb-frontends/dib9000.c b/drivers/media/dvb-frontends/dib9000.c index bab8c5a980a2..5897977d2d00 100644 --- a/drivers/media/dvb-frontends/dib9000.c +++ b/drivers/media/dvb-frontends/dib9000.c @@ -225,7 +225,7 @@ static u16 to_fw_output_mode(u16 mode) } } -static u16 dib9000_read16_attr(struct dib9000_state *state, u16 reg, u8 * b, u32 len, u16 attribute) +static int dib9000_read16_attr(struct dib9000_state *state, u16 reg, u8 *b, u32 len, u16 attribute) { u32 chunk_size = 126; u32 l; @@ -309,7 +309,7 @@ static inline u16 dib9000_read_word_attr(struct dib9000_state *state, u16 reg, u #define dib9000_read16_noinc_attr(state, reg, b, len, attribute) dib9000_read16_attr(state, reg, b, len, (attribute) | DATA_BUS_ACCESS_MODE_NO_ADDRESS_INCREMENT) -static u16 dib9000_write16_attr(struct dib9000_state *state, u16 reg, const u8 * buf, u32 len, u16 attribute) +static int dib9000_write16_attr(struct dib9000_state *state, u16 reg, const u8 *buf, u32 len, u16 attribute) { u32 chunk_size = 126; u32 l; -- 2.20.1