PM: sleep: spread "const char *" correctness

Alexey Dobriyan · rafaeljw · commit 02d7f4005e94 · 2020-07-14T19:25:41.000+02:00
Fixed string literals can be referred to as "const char *".

Signed-off-by: Alexey Dobriyan &lt;adobriyan@gmail.com&gt;
[ rjw: Minor subject edit ]
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
diff --git a/kernel/power/power.h b/kernel/power/power.h
@@ -32,7 +32,7 @@ static inline int init_header_complete(struct swsusp_info *info)
 	return arch_hibernation_header_save(info, MAX_ARCH_HEADER_SIZE);
 }
 
-static inline char *check_image_kernel(struct swsusp_info *info)
+static inline const char *check_image_kernel(struct swsusp_info *info)
 {
 	return arch_hibernation_header_restore(info) ?
 			"architecture specific data" : NULL;
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
@@ -2023,7 +2023,7 @@ static int init_header_complete(struct swsusp_info *info)
 	return 0;
 }
 
-static char *check_image_kernel(struct swsusp_info *info)
+static const char *check_image_kernel(struct swsusp_info *info)
 {
 	if (info->version_code != LINUX_VERSION_CODE)
 		return "kernel version";
@@ -2176,7 +2176,7 @@ static void mark_unsafe_pages(struct memory_bitmap *bm)
 
 static int check_header(struct swsusp_info *info)
 {
-	char *reason;
+	const char *reason;
 
 	reason = check_image_kernel(info);
 	if (!reason && info->num_physpages != get_num_physpages())

Original file line number	Diff line number	Diff line change
`@@ -32,7 +32,7 @@ static inline int init_header_complete(struct swsusp_info *info)`
`32`	`32`	`return arch_hibernation_header_save(info, MAX_ARCH_HEADER_SIZE);`
`33`	`33`	`}`
`34`	`34`
`35`		`-static inline char check_image_kernel(struct swsusp_info info)`
	`35`	`+static inline const char check_image_kernel(struct swsusp_info info)`
`36`	`36`	`{`
`37`	`37`	`return arch_hibernation_header_restore(info) ?`
`38`	`38`	`"architecture specific data" : NULL;`
Original file line number	Diff line number	Diff line change
`@@ -2023,7 +2023,7 @@ static int init_header_complete(struct swsusp_info *info)`
`2023`	`2023`	`return 0;`
`2024`	`2024`	`}`
`2025`	`2025`
`2026`		`-static char check_image_kernel(struct swsusp_info info)`
	`2026`	`+static const char check_image_kernel(struct swsusp_info info)`
`2027`	`2027`	`{`
`2028`	`2028`	`if (info->version_code != LINUX_VERSION_CODE)`
`2029`	`2029`	`return "kernel version";`
`@@ -2176,7 +2176,7 @@ static void mark_unsafe_pages(struct memory_bitmap *bm)`
`2176`	`2176`
`2177`	`2177`	`static int check_header(struct swsusp_info *info)`
`2178`	`2178`	`{`
`2179`		`- char *reason;`
	`2179`	`+ const char *reason;`
`2180`	`2180`
`2181`	`2181`	`reason = check_image_kernel(info);`
`2182`	`2182`	`if (!reason && info->num_physpages != get_num_physpages())`