From: Julia Lawall <julia.law...@lip6.fr> Set the return variable to an error code as done elsewhere in the function.
A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <julia.law...@lip6.fr> --- Not tested. drivers/media/tuners/e4000.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/drivers/media/tuners/e4000.c b/drivers/media/tuners/e4000.c index 72971a8..40c1da7 100644 --- a/drivers/media/tuners/e4000.c +++ b/drivers/media/tuners/e4000.c @@ -243,8 +243,10 @@ static int e4000_set_params(struct dvb_frontend *fe) break; } - if (i == ARRAY_SIZE(e4000_pll_lut)) + if (i == ARRAY_SIZE(e4000_pll_lut)) { + ret = -EINVAL; goto err; + } /* * Note: Currently f_vco overflows when c->frequency is 1 073 741 824 Hz @@ -271,8 +273,10 @@ static int e4000_set_params(struct dvb_frontend *fe) break; } - if (i == ARRAY_SIZE(e400_lna_filter_lut)) + if (i == ARRAY_SIZE(e400_lna_filter_lut)) { + ret = -EINVAL; goto err; + } ret = e4000_wr_reg(priv, 0x10, e400_lna_filter_lut[i].val); if (ret < 0) @@ -284,8 +288,10 @@ static int e4000_set_params(struct dvb_frontend *fe) break; } - if (i == ARRAY_SIZE(e4000_if_filter_lut)) + if (i == ARRAY_SIZE(e4000_if_filter_lut)) { + ret = -EINVAL; goto err; + } buf[0] = e4000_if_filter_lut[i].reg11_val; buf[1] = e4000_if_filter_lut[i].reg12_val; @@ -300,8 +306,10 @@ static int e4000_set_params(struct dvb_frontend *fe) break; } - if (i == ARRAY_SIZE(e4000_band_lut)) + if (i == ARRAY_SIZE(e4000_band_lut)) { + ret = -EINVAL; goto err; + } ret = e4000_wr_reg(priv, 0x07, e4000_band_lut[i].reg07_val); if (ret < 0) -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
