staging: rts5208: Remove negations

Previously return variable fake_para was being negated before return.
For simplification, fake_para can be changed to valid_para, which is
returned without negation (corresponding values swapped accordingly).
Further, the function names check_sd_current_prior and check_sd_speed_prior
can be changed to valid_sd_current_prior and valid_sd_speed_prior
respectively for greater clarity on the purpose of the functions.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rts5208/rtsx_chip.c

@@ -598,38 +598,38 @@ nextcard:
 	return STATUS_SUCCESS;
 }
 
-static inline int check_sd_speed_prior(u32 sd_speed_prior)
+static inline int valid_sd_speed_prior(u32 sd_speed_prior)
 {
-	bool fake_para = false;
+	bool valid_para = true;
 	int i;
 
 	for (i = 0; i < 4; i++) {
 		u8 tmp = (u8)(sd_speed_prior >> (i * 8));
 
 		if ((tmp < 0x01) || (tmp > 0x04)) {
-			fake_para = true;
+			valid_para = false;
 			break;
 		}
 	}
 
-	return !fake_para;
+	return valid_para;
 }
 
-static inline int check_sd_current_prior(u32 sd_current_prior)
+static inline int valid_sd_current_prior(u32 sd_current_prior)
 {
-	bool fake_para = false;
+	bool valid_para = true;
 	int i;
 
 	for (i = 0; i < 4; i++) {
 		u8 tmp = (u8)(sd_current_prior >> (i * 8));
 
 		if (tmp > 0x03) {
-			fake_para = true;
+			valid_para = false;
 			break;
 		}
 	}
 
-	return !fake_para;
+	return valid_para;
 }
 
 static int rts5208_init(struct rtsx_chip *chip)
@@ -796,13 +796,13 @@ int rtsx_init_chip(struct rtsx_chip *chip)
 		chip->rw_fail_cnt[i] = 0;
 	}
 
-	if (!check_sd_speed_prior(chip->sd_speed_prior))
+	if (!valid_sd_speed_prior(chip->sd_speed_prior))
 		chip->sd_speed_prior = 0x01040203;
 
 	dev_dbg(rtsx_dev(chip), "sd_speed_prior = 0x%08x\n",
 		chip->sd_speed_prior);
 
-	if (!check_sd_current_prior(chip->sd_current_prior))
+	if (!valid_sd_current_prior(chip->sd_current_prior))
 		chip->sd_current_prior = 0x00010203;
 
 	dev_dbg(rtsx_dev(chip), "sd_current_prior = 0x%08x\n",