[PATCH 2/2] fsl/qe: Cleanup error paths in ucc_of_parse_tdm()

From: Dan Carpenter
Date: Sat Jul 22 2017 - 03:36:38 EST


The most important part of this change is that it not propogates error
codes instead of returning -EINVAL. There was also a tab missing, and
a couple other minor cleanups which don't affect runtime.

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
Not tested, but I don't think propogating the errors will cause a
problem.

diff --git a/drivers/soc/fsl/qe/qe_tdm.c b/drivers/soc/fsl/qe/qe_tdm.c
index ec7a853053c3..ce071a78209b 100644
--- a/drivers/soc/fsl/qe/qe_tdm.c
+++ b/drivers/soc/fsl/qe/qe_tdm.c
@@ -42,7 +42,7 @@ int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
struct ucc_tdm_info *ut_info)
{
const char *sprop;
- int ret = 0;
+ int ret;
u32 val;
struct resource *res;
struct device_node *np2;
@@ -68,7 +68,7 @@ int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
if ((ut_info->uf_info.tx_sync < QE_CLK_NONE) ||
(ut_info->uf_info.tx_sync > QE_TSYNC_PIN)) {
pr_err("QE-TDM: Invalid tx-sync-clock property\n");
- return -EINVAL;
+ return -EINVAL;
}
} else {
pr_err("QE-TDM: Invalid tx-sync-clock property\n");
@@ -78,13 +78,12 @@ int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
ret = of_property_read_u32_index(np, "fsl,tx-timeslot-mask", 0, &val);
if (ret) {
pr_err("QE-TDM: Invalid tx-timeslot-mask property\n");
- return -EINVAL;
+ return ret;
}
utdm->tx_ts_mask = val;

ret = of_property_read_u32_index(np, "fsl,rx-timeslot-mask", 0, &val);
if (ret) {
- ret = -EINVAL;
pr_err("QE-TDM: Invalid rx-timeslot-mask property\n");
return ret;
}
@@ -92,7 +91,6 @@ int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,

ret = of_property_read_u32_index(np, "fsl,tdm-id", 0, &val);
if (ret) {
- ret = -EINVAL;
pr_err("QE-TDM: No fsl,tdm-id property for this UCC\n");
return ret;
}
@@ -106,18 +104,16 @@ int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,

sprop = of_get_property(np, "fsl,tdm-framer-type", NULL);
if (!sprop) {
- ret = -EINVAL;
pr_err("QE-TDM: No tdm-framer-type property for UCC\n");
- return ret;
+ return -EINVAL;
}
ret = set_tdm_framer(sprop);
if (ret < 0)
- return -EINVAL;
+ return ret;
utdm->tdm_framer_type = ret;

ret = of_property_read_u32_index(np, "fsl,siram-entry-id", 0, &val);
if (ret) {
- ret = -EINVAL;
pr_err("QE-TDM: No siram entry id for UCC\n");
return ret;
}
@@ -164,7 +160,7 @@ int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
siram_init_flag = 1;
}

- return ret;
+ return 0;
}
EXPORT_SYMBOL(ucc_of_parse_tdm);