exfat: fix name_hash computation on big endian systems
diff mbox series

Message ID 20200710070630.32684-1-namjae.jeon@samsung.com
State New
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Series
  • exfat: fix name_hash computation on big endian systems
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Commit Message

Namjae Jeon July 10, 2020, 7:06 a.m. UTC
From: Ilya Ponetayev <i.ponetaev@ndmsystems.com>

On-disk format for name_hash field is LE, so it must be explicitly transformed
on BE system for proper result.

Fixes: 370e812b3ec1 ("exfat: add nls operations")
Cc: stable@vger.kernel.org # v5.7
Signed-off-by: Chen Minqiang <ptpt52@gmail.com>
Signed-off-by: Ilya Ponetayev <i.ponetaev@ndmsystems.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
---
 fs/exfat/nls.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Patch
diff mbox series

diff --git a/fs/exfat/nls.c b/fs/exfat/nls.c
index 57b5a7a4d1f7..c286a5c2e323 100644
--- a/fs/exfat/nls.c
+++ b/fs/exfat/nls.c
@@ -519,7 +519,7 @@  static int exfat_utf8_to_utf16(struct super_block *sb,
 		    exfat_wstrchr(bad_uni_chars, *uniname))
 			lossy |= NLS_NAME_LOSSY;
 
-		upname[i] = exfat_toupper(sb, *uniname);
+		upname[i] = cpu_to_le16(exfat_toupper(sb, *uniname));
 		uniname++;
 	}
 
@@ -611,7 +611,7 @@  static int exfat_nls_to_ucs2(struct super_block *sb,
 		    exfat_wstrchr(bad_uni_chars, *uniname))
 			lossy |= NLS_NAME_LOSSY;
 
-		upname[unilen] = exfat_toupper(sb, *uniname);
+		upname[unilen] = cpu_to_le16(exfat_toupper(sb, *uniname));
 		uniname++;
 		unilen++;
 	}