NAND: formatting cleanups from env.oob support

Change if (ok) {
	bunch of stuff
} else {
	error
}

to

if (error) {
	get out
}

proceed with bunch of stuff

Plus a few whitespace cleanups.

Signed-off-by: Scott Wood <scottwood@freescale.com>

common/cmd_nand.c

@@ -201,7 +201,7 @@ static void do_nand_status(nand_info_t *nand)
 unsigned long nand_env_oob_offset;
 
 int do_nand_env_oob(cmd_tbl_t *cmdtp, nand_info_t *nand,
-				 int argc, char * const argv[])
+		    int argc, char * const argv[])
 {
 	int ret;
 	uint32_t oob_buf[ENV_OFFSET_SIZE/sizeof(uint32_t)];
@@ -210,10 +210,10 @@ int do_nand_env_oob(cmd_tbl_t *cmdtp, nand_info_t *nand,
 
 	if (!strcmp(cmd, "get")) {
 		ret = get_nand_env_oob(nand, &nand_env_oob_offset);
-		if (!ret)
-			printf("0x%08lx\n", nand_env_oob_offset);
-		else
+		if (ret)
 			return 1;
+
+		printf("0x%08lx\n", nand_env_oob_offset);
 	} else if (!strcmp(cmd, "set")) {
 		ulong addr;
 		size_t dummy_size;
@@ -222,17 +222,17 @@ int do_nand_env_oob(cmd_tbl_t *cmdtp, nand_info_t *nand,
 		if (argc < 3)
 			goto usage;
 
-		if (arg_off_size(argc-2, argv + 2, nand, &addr,
-						  &dummy_size) < 0) {
+		if (arg_off_size(argc - 2, argv + 2, nand, &addr,
+				 &dummy_size) < 0) {
 			printf("Offset or partition name expected\n");
 			return 1;
 		}
 
 		if (nand->oobavail < ENV_OFFSET_SIZE) {
-			printf("Insufficient available OOB bytes: %d OOB bytes"
-			    " available but %d required for env.oob support\n",
-								nand->oobavail,
-							      ENV_OFFSET_SIZE);
+			printf("Insufficient available OOB bytes:\n"
+			       "%d OOB bytes available but %d required for "
+			       "env.oob support\n",
+			       nand->oobavail, ENV_OFFSET_SIZE);
 			return 1;
 		}
 
@@ -251,23 +251,23 @@ int do_nand_env_oob(cmd_tbl_t *cmdtp, nand_info_t *nand,
 		oob_buf[1] = addr / nand->erasesize;
 
 		ret = nand->write_oob(nand, ENV_OFFSET_SIZE, &ops);
-		if (!ret) {
-			ret = get_nand_env_oob(nand, &nand_env_oob_offset);
-			if (ret) {
-				printf("Error reading env offset in OOB\n");
-				return ret;
-			}
-
-			if (addr != nand_env_oob_offset) {
-				printf("Verification of env offset in OOB "
-				       "failed: 0x%08lx expected but got "
-				       "0x%08lx\n", addr, nand_env_oob_offset);
-				return 1;
-			}
-		} else {
+		if (ret) {
 			printf("Error writing OOB block 0\n");
 			return ret;
 		}
+
+		ret = get_nand_env_oob(nand, &nand_env_oob_offset);
+		if (ret) {
+			printf("Error reading env offset in OOB\n");
+			return ret;
+		}
+
+		if (addr != nand_env_oob_offset) {
+			printf("Verification of env offset in OOB failed: "
+			       "0x%08lx expected but got 0x%08lx\n",
+			       addr, nand_env_oob_offset);
+			return 1;
+		}
 	} else {
 		goto usage;
 	}
@@ -369,8 +369,10 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 
 #ifdef CONFIG_ENV_OFFSET_OOB
 	/* this command operates only on the first nand device */
-	if (strcmp(cmd, "env.oob") == 0)
-	      return do_nand_env_oob(cmdtp, &nand_info[0], argc - 1, argv + 1);
+	if (strcmp(cmd, "env.oob") == 0) {
+		return do_nand_env_oob(cmdtp, &nand_info[0],
+				       argc - 1, argv + 1);
+	}
 #endif
 
 	/* the following commands operate on the current device */

common/env_nand.c

@@ -299,23 +299,21 @@ int get_nand_env_oob(nand_info_t *nand, unsigned long *result)
 	ops.oobbuf = (void *) oob_buf;
 
 	ret = nand->read_oob(nand, ENV_OFFSET_SIZE, &ops);
+	if (ret) {
+		printf("error reading OOB block 0\n");
+		return ret;
+	}
 
-	if (!ret) {
-		if (oob_buf[0] == ENV_OOB_MARKER) {
-			*result = oob_buf[1] * nand->erasesize;
-		} else if (oob_buf[0] == ENV_OOB_MARKER_OLD) {
-			*result = oob_buf[1];
-		} else {
-			printf("No dynamic environment marker in OOB block 0"
-									"\n");
-			ret = -ENOENT;
-			goto fail;
-		}
+	if (oob_buf[0] == ENV_OOB_MARKER) {
+		*result = oob_buf[1] * nand->erasesize;
+	} else if (oob_buf[0] == ENV_OOB_MARKER_OLD) {
+		*result = oob_buf[1];
 	} else {
-		printf("error reading OOB block 0\n");
+		printf("No dynamic environment marker in OOB block 0\n");
+		return -ENOENT;
 	}
-fail:
-	return ret;
+
+	return 0;
 }
 #endif