[PATCH 5.10 185/491] mtd: partitions: redboot: fix style issues

Greg Kroah-Hartman
2026-04-13T16:50:34Z

From: Corentin Labbe <clabbe@baylibre.com>

[ Upstream commit eb1765c40530ccc8690b9dad88cec6aaa6bfb498 ]

This patch fixes easy checkpatch issues.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210520114851.1274609-2-clabbe@baylibre.com
Stable-dep-of: 8e2f8020270a ("mtd: Avoid boot crash in RedBoot partition table parser")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/mtd/parsers/redboot.c | 69 ++++++++++++++++++++----------------------
1 file changed, 34 insertions(+), 35 deletions(-)

--- a/drivers/mtd/parsers/redboot.c
+++ b/drivers/mtd/parsers/redboot.c
@@ -17,15 +17,15 @@
#include <linux/module.h>

struct fis_image_desc {
- unsigned char name[16]; // Null terminated name
- uint32_t flash_base; // Address within FLASH of image
- uint32_t mem_base; // Address in memory where it executes
- uint32_t size; // Length of image
- uint32_t entry_point; // Execution entry point
- uint32_t data_length; // Length of actual data
- unsigned char _pad[256-(16+7*sizeof(uint32_t))];
- uint32_t desc_cksum; // Checksum over image descriptor
- uint32_t file_cksum; // Checksum over image data
+ unsigned char name[16]; // Null terminated name
+ u32 flash_base; // Address within FLASH of image
+ u32 mem_base; // Address in memory where it executes
+ u32 size; // Length of image
+ u32 entry_point; // Execution entry point
+ u32 data_length; // Length of actual data
+ unsigned char _pad[256 - (16 + 7 * sizeof(u32))];
+ u32 desc_cksum; // Checksum over image descriptor
+ u32 file_cksum; // Checksum over image data
};

struct fis_list {
@@ -91,12 +91,12 @@ static int parse_redboot_partitions(stru

parse_redboot_of(master);

- if ( directory < 0 ) {
+ if (directory < 0) {
offset = master->size + directory * master->erasesize;
while (mtd_block_isbad(master, offset)) {
if (!offset) {
- nogood:
- printk(KERN_NOTICE "Failed to find a non-bad block to check for RedBoot partition table\n");
+nogood:
+ pr_notice("Failed to find a non-bad block to check for RedBoot partition table\n");
return -EIO;
}
offset -= master->erasesize;
@@ -114,8 +114,8 @@ static int parse_redboot_partitions(stru
if (!buf)
return -ENOMEM;

- printk(KERN_NOTICE "Searching for RedBoot partition table in %s at offset 0x%lx\n",
- master->name, offset);
+ pr_notice("Searching for RedBoot partition table in %s at offset 0x%lx\n",
+ master->name, offset);

ret = mtd_read(master, offset, master->erasesize, &retlen,
(void *)buf);
@@ -151,14 +151,13 @@ static int parse_redboot_partitions(stru
&& swab32(buf[i].size) < master->erasesize)) {
int j;
/* Update numslots based on actual FIS directory size */
- numslots = swab32(buf[i].size) / sizeof (struct fis_image_desc);
+ numslots = swab32(buf[i].size) / sizeof(struct fis_image_desc);
for (j = 0; j < numslots; ++j) {
-
/* A single 0xff denotes a deleted entry.
* Two of them in a row is the end of the table.
*/
if (buf[j].name[0] == 0xff) {
- if (buf[j].name[1] == 0xff) {
+ if (buf[j].name[1] == 0xff) {
break;
} else {
continue;
@@ -185,8 +184,8 @@ static int parse_redboot_partitions(stru
}
if (i == numslots) {
/* Didn't find it */
- printk(KERN_NOTICE "No RedBoot partition table detected in %s\n",
- master->name);
+ pr_notice("No RedBoot partition table detected in %s\n",
+ master->name);
ret = 0;
goto out;
}
@@ -205,7 +204,7 @@ static int parse_redboot_partitions(stru
break;

new_fl = kmalloc(sizeof(struct fis_list), GFP_KERNEL);
- namelen += strlen(buf[i].name)+1;
+ namelen += strlen(buf[i].name) + 1;
if (!new_fl) {
ret = -ENOMEM;
goto out;
@@ -214,13 +213,13 @@ static int parse_redboot_partitions(stru
if (data && data->origin)
buf[i].flash_base -= data->origin;
else
- buf[i].flash_base &= master->size-1;
+ buf[i].flash_base &= master->size - 1;

/* I'm sure the JFFS2 code has done me permanent damage.
* I now think the following is _normal_
*/
prev = &fl;
- while(*prev && (*prev)->img->flash_base < new_fl->img->flash_base)
+ while (*prev && (*prev)->img->flash_base < new_fl->img->flash_base)
prev = &(*prev)->next;
new_fl->next = *prev;
*prev = new_fl;
@@ -240,7 +239,7 @@ static int parse_redboot_partitions(stru
}
}
#endif
- parts = kzalloc(sizeof(*parts)*nrparts + nulllen + namelen, GFP_KERNEL);
+ parts = kzalloc(sizeof(*parts) * nrparts + nulllen + namelen, GFP_KERNEL);

if (!parts) {
ret = -ENOMEM;
@@ -249,23 +248,22 @@ static int parse_redboot_partitions(stru

nullname = (char *)&parts[nrparts];
#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
- if (nulllen > 0) {
+ if (nulllen > 0)
strcpy(nullname, nullstring);
- }
#endif
names = nullname + nulllen;

- i=0;
+ i = 0;

#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
if (fl->img->flash_base) {
- parts[0].name = nullname;
- parts[0].size = fl->img->flash_base;
- parts[0].offset = 0;
+ parts[0].name = nullname;
+ parts[0].size = fl->img->flash_base;
+ parts[0].offset = 0;
i++;
}
#endif
- for ( ; i<nrparts; i++) {
+ for ( ; i < nrparts; i++) {
parts[i].size = fl->img->size;
parts[i].offset = fl->img->flash_base;
parts[i].name = names;
@@ -273,17 +271,17 @@ static int parse_redboot_partitions(stru
strcpy(names, fl->img->name);
#ifdef CONFIG_MTD_REDBOOT_PARTS_READONLY
if (!memcmp(names, "RedBoot", 8) ||
- !memcmp(names, "RedBoot config", 15) ||
- !memcmp(names, "FIS directory", 14)) {
+ !memcmp(names, "RedBoot config", 15) ||
+ !memcmp(names, "FIS directory", 14)) {
parts[i].mask_flags = MTD_WRITEABLE;
}
#endif
- names += strlen(names)+1;
+ names += strlen(names) + 1;

#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
- if(fl->next && fl->img->flash_base + fl->img->size + master->erasesize <= fl->next->img->flash_base) {
+ if (fl->next && fl->img->flash_base + fl->img->size + master->erasesize <= fl->next->img->flash_base) {
i++;
- parts[i].offset = parts[i-1].size + parts[i-1].offset;
+ parts[i].offset = parts[i - 1].size + parts[i - 1].offset;
parts[i].size = fl->next->img->flash_base - parts[i].offset;
parts[i].name = nullname;
}
@@ -297,6 +295,7 @@ static int parse_redboot_partitions(stru
out:
while (fl) {
struct fis_list *old = fl;
+
fl = fl->next;
kfree(old);
}