From: Mauro Carvalho Chehab Date: Fri, 5 Jun 2015 10:58:52 +0000 (-0300) Subject: [media] drxk: better handle errors X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2f60f13c14b45b311843d2ca09b5e3ef94c16f71;p=linux-beck.git [media] drxk: better handle errors As reported by smatch: drivers/media/dvb-frontends/drxk_hard.c:3277 dvbt_sc_command() warn: missing break? reassigning 'status' This is basically because the error handling logic there was crappy. Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/dvb-frontends/drxk_hard.c b/drivers/media/dvb-frontends/drxk_hard.c index ad35264a3819..b1fc4bd44a2b 100644 --- a/drivers/media/dvb-frontends/drxk_hard.c +++ b/drivers/media/dvb-frontends/drxk_hard.c @@ -3262,6 +3262,7 @@ static int dvbt_sc_command(struct drxk_state *state, } /* Write needed parameters and the command */ + status = 0; switch (cmd) { /* All commands using 5 parameters */ /* All commands using 4 parameters */ @@ -3270,16 +3271,16 @@ static int dvbt_sc_command(struct drxk_state *state, case OFDM_SC_RA_RAM_CMD_PROC_START: case OFDM_SC_RA_RAM_CMD_SET_PREF_PARAM: case OFDM_SC_RA_RAM_CMD_PROGRAM_PARAM: - status = write16(state, OFDM_SC_RA_RAM_PARAM1__A, param1); + status |= write16(state, OFDM_SC_RA_RAM_PARAM1__A, param1); /* All commands using 1 parameters */ case OFDM_SC_RA_RAM_CMD_SET_ECHO_TIMING: case OFDM_SC_RA_RAM_CMD_USER_IO: - status = write16(state, OFDM_SC_RA_RAM_PARAM0__A, param0); + status |= write16(state, OFDM_SC_RA_RAM_PARAM0__A, param0); /* All commands using 0 parameters */ case OFDM_SC_RA_RAM_CMD_GET_OP_PARAM: case OFDM_SC_RA_RAM_CMD_NULL: /* Write command */ - status = write16(state, OFDM_SC_RA_RAM_CMD__A, cmd); + status |= write16(state, OFDM_SC_RA_RAM_CMD__A, cmd); break; default: /* Unknown command */