staging: exfat: use integer constants

Replace manually generated values with predefined constants.
Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Link: https://lore.kernel.org/r/20190908152616.25459-3-vvidic@valentin-vidic.from.hrSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/exfat/exfat_core.c

@@ -204,7 +204,7 @@ s32 fat_alloc_cluster(struct super_block *sb, s32 num_alloc,
 
 			if ((--num_alloc) == 0) {
 				p_fs->clu_srch_ptr = new_clu;
-				if (p_fs->used_clusters != (u32)~0)
+				if (p_fs->used_clusters != UINT_MAX)
 					p_fs->used_clusters += num_clusters;
 
 				return num_clusters;
@@ -215,7 +215,7 @@ s32 fat_alloc_cluster(struct super_block *sb, s32 num_alloc,
 	}
 
 	p_fs->clu_srch_ptr = new_clu;
-	if (p_fs->used_clusters != (u32)~0)
+	if (p_fs->used_clusters != UINT_MAX)
 		p_fs->used_clusters += num_clusters;
 
 	return num_clusters;
@@ -273,7 +273,7 @@ s32 exfat_alloc_cluster(struct super_block *sb, s32 num_alloc,
 
 		if ((--num_alloc) == 0) {
 			p_fs->clu_srch_ptr = hint_clu;
-			if (p_fs->used_clusters != (u32)~0)
+			if (p_fs->used_clusters != UINT_MAX)
 				p_fs->used_clusters += num_clusters;
 
 			p_chain->size += num_clusters;
@@ -293,7 +293,7 @@ s32 exfat_alloc_cluster(struct super_block *sb, s32 num_alloc,
 	}
 
 	p_fs->clu_srch_ptr = hint_clu;
-	if (p_fs->used_clusters != (u32)~0)
+	if (p_fs->used_clusters != UINT_MAX)
 		p_fs->used_clusters += num_clusters;
 
 	p_chain->size += num_clusters;
@@ -337,7 +337,7 @@ void fat_free_cluster(struct super_block *sb, struct chain_t *p_chain,
 
 	} while (clu != CLUSTER_32(~0));
 
-	if (p_fs->used_clusters != (u32)~0)
+	if (p_fs->used_clusters != UINT_MAX)
 		p_fs->used_clusters -= num_clusters;
 }
 
@@ -396,7 +396,7 @@ void exfat_free_cluster(struct super_block *sb, struct chain_t *p_chain,
 		} while ((clu != CLUSTER_32(0)) && (clu != CLUSTER_32(~0)));
 	}
 
-	if (p_fs->used_clusters != (u32)~0)
+	if (p_fs->used_clusters != UINT_MAX)
 		p_fs->used_clusters -= num_clusters;
 }
 
@@ -3064,7 +3064,7 @@ s32 fat16_mount(struct super_block *sb, struct pbr_sector_t *p_pbr)
 
 	p_fs->vol_flag = VOL_CLEAN;
 	p_fs->clu_srch_ptr = 2;
-	p_fs->used_clusters = (u32)~0;
+	p_fs->used_clusters = UINT_MAX;
 
 	p_fs->fs_func = &fat_fs_func;
 
@@ -3117,7 +3117,7 @@ s32 fat32_mount(struct super_block *sb, struct pbr_sector_t *p_pbr)
 
 	p_fs->vol_flag = VOL_CLEAN;
 	p_fs->clu_srch_ptr = 2;
-	p_fs->used_clusters = (u32)~0;
+	p_fs->used_clusters = UINT_MAX;
 
 	p_fs->fs_func = &fat_fs_func;
 
@@ -3192,7 +3192,7 @@ s32 exfat_mount(struct super_block *sb, struct pbr_sector_t *p_pbr)
 
 	p_fs->vol_flag = (u32)GET16(p_bpb->vol_flags);
 	p_fs->clu_srch_ptr = 2;
-	p_fs->used_clusters = (u32)~0;
+	p_fs->used_clusters = UINT_MAX;
 
 	p_fs->fs_func = &exfat_fs_func;
 

drivers/staging/exfat/exfat_super.c

@@ -502,7 +502,7 @@ static int ffsGetVolInfo(struct super_block *sb, struct vol_info_t *info)
 	/* acquire the lock for file system critical section */
 	down(&p_fs->v_sem);
 
-	if (p_fs->used_clusters == (u32)~0)
+	if (p_fs->used_clusters == UINT_MAX)
 		p_fs->used_clusters = p_fs->fs_func->count_used_clusters(sb);
 
 	info->FatType = p_fs->vol_type;
@@ -3503,7 +3503,7 @@ static int exfat_statfs(struct dentry *dentry, struct kstatfs *buf)
 	struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
 	struct vol_info_t info;
 
-	if (p_fs->used_clusters == (u32)~0) {
+	if (p_fs->used_clusters == UINT_MAX) {
 		if (ffsGetVolInfo(sb, &info) == FFS_MEDIAERR)
 			return -EIO;
 
@@ -3678,7 +3678,7 @@ static int parse_options(char *options, int silent, int *debug,
 	opts->fs_uid = current_uid();
 	opts->fs_gid = current_gid();
 	opts->fs_fmask = opts->fs_dmask = current->fs->umask;
-	opts->allow_utime = (unsigned short)-1;
+	opts->allow_utime = U16_MAX;
 	opts->codepage = exfat_default_codepage;
 	opts->iocharset = exfat_default_iocharset;
 	opts->casesensitive = 0;
@@ -3770,7 +3770,7 @@ static int parse_options(char *options, int silent, int *debug,
 	}
 
 out:
-	if (opts->allow_utime == (unsigned short)-1)
+	if (opts->allow_utime == U16_MAX)
 		opts->allow_utime = ~opts->fs_dmask & 0022;
 
 	return 0;