1 files changed, 12 insertions, 32 deletions

diff --git a/drivers/net/wireless/realtek/rtlwifi/debug.c b/drivers/net/wireless/realtek/rtlwifi/debug.c
index 55db71c766fe..9eb26dfe4ca9 100644
--- a/drivers/net/wireless/realtek/rtlwifi/debug.c
+++ b/drivers/net/wireless/realtek/rtlwifi/debug.c
@@ -8,26 +8,6 @@
 #include <linux/vmalloc.h>
 
 #ifdef CONFIG_RTLWIFI_DEBUG
-void _rtl_dbg_trace(struct rtl_priv *rtlpriv, u64 comp, int level,
-		    const char *fmt, ...)
-{
-	if (unlikely((comp & rtlpriv->cfg->mod_params->debug_mask) &&
-		     level <= rtlpriv->cfg->mod_params->debug_level)) {
-		struct va_format vaf;
-		va_list args;
-
-		va_start(args, fmt);
-
-		vaf.fmt = fmt;
-		vaf.va = &args;
-
-		pr_info(":<%lx> %pV", in_interrupt(), &vaf);
-
-		va_end(args);
-	}
-}
-EXPORT_SYMBOL_GPL(_rtl_dbg_trace);
-
 void _rtl_dbg_print(struct rtl_priv *rtlpriv, u64 comp, int level,
 		    const char *fmt, ...)
 {
@@ -298,8 +278,8 @@ static ssize_t rtl_debugfs_set_write_reg(struct file *filp,
 
 	tmp_len = (count > sizeof(tmp) - 1 ? sizeof(tmp) - 1 : count);
 
-	if (!buffer || copy_from_user(tmp, buffer, tmp_len))
-		return count;
+	if (copy_from_user(tmp, buffer, tmp_len))
+		return -EFAULT;
 
 	tmp[tmp_len] = '\0';
 
@@ -307,7 +287,7 @@ static ssize_t rtl_debugfs_set_write_reg(struct file *filp,
 	num = sscanf(tmp, "%x %x %x", &addr, &val, &len);
 
 	if (num !=  3)
-		return count;
+		return -EINVAL;
 
 	switch (len) {
 	case 1:
@@ -349,8 +329,8 @@ static ssize_t rtl_debugfs_set_write_h2c(struct file *filp,
 
 	tmp_len = (count > sizeof(tmp) - 1 ? sizeof(tmp) - 1 : count);
 
-	if (!buffer || copy_from_user(tmp, buffer, tmp_len))
-		return count;
+	if (copy_from_user(tmp, buffer, tmp_len))
+		return -EFAULT;
 
 	tmp[tmp_len] = '\0';
 
@@ -360,8 +340,8 @@ static ssize_t rtl_debugfs_set_write_h2c(struct file *filp,
 			 &h2c_data[4], &h2c_data[5],
 			 &h2c_data[6], &h2c_data[7]);
 
-	if (h2c_len <= 0)
-		return count;
+	if (h2c_len == 0)
+		return -EINVAL;
 
 	for (i = 0; i < h2c_len; i++)
 		h2c_data_packed[i] = (u8)h2c_data[i];
@@ -395,8 +375,8 @@ static ssize_t rtl_debugfs_set_write_rfreg(struct file *filp,
 
 	tmp_len = (count > sizeof(tmp) - 1 ? sizeof(tmp) - 1 : count);
 
-	if (!buffer || copy_from_user(tmp, buffer, tmp_len))
-		return count;
+	if (copy_from_user(tmp, buffer, tmp_len))
+		return -EFAULT;
 
 	tmp[tmp_len] = '\0';
 
@@ -404,9 +384,9 @@ static ssize_t rtl_debugfs_set_write_rfreg(struct file *filp,
 		     &path, &addr, &bitmask, &data);
 
 	if (num != 4) {
-		RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
-			 "Format is <path> <addr> <mask> <data>\n");
-		return count;
+		rtl_dbg(rtlpriv, COMP_ERR, DBG_DMESG,
+			"Format is <path> <addr> <mask> <data>\n");
+		return -EINVAL;
 	}
 
 	rtl_set_rfreg(hw, path, addr, bitmask, data);