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| author | relan <relan@users.noreply.github.com> | 2009-09-28 08:45:26 +0000 |
|---|---|---|
| committer | relan <relan@users.noreply.github.com> | 2015-08-24 08:26:10 +0300 |
| commit | 26ab8a8e360cd0c977366e55acec446054d0923e (patch) | |
| tree | 21b2f4b1f131602fb372874d9ec4847c378c9721 /libexfat/lookup.c | |
| parent | c843e18ce91e9a7a6629fc779a09ddb8860470bc (diff) | |
| download | android_external_exfat-26ab8a8e360cd0c977366e55acec446054d0923e.tar.gz android_external_exfat-26ab8a8e360cd0c977366e55acec446054d0923e.tar.bz2 android_external_exfat-26ab8a8e360cd0c977366e55acec446054d0923e.zip | |
Fix integer underflow in compare_char().
Diffstat (limited to 'libexfat/lookup.c')
| -rw-r--r-- | libexfat/lookup.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libexfat/lookup.c b/libexfat/lookup.c index 0f60a31..a40550b 100644 --- a/libexfat/lookup.c +++ b/libexfat/lookup.c @@ -215,9 +215,9 @@ int exfat_readdir(struct exfat* ef, struct exfat_node* node, static int compare_char(struct exfat* ef, uint16_t a, uint16_t b) { if (a >= ef->upcase_chars || b >= ef->upcase_chars) - return a - b; - else - return le16_to_cpu(ef->upcase[a]) - le16_to_cpu(ef->upcase[b]); + return (int) a - (int) b; + + return (int) le16_to_cpu(ef->upcase[a]) - (int) le16_to_cpu(ef->upcase[b]); } static int compare_name(struct exfat* ef, const le16_t* a, const le16_t* b) |