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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2018-10-01 19:44:58 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-13 22:21:25 +1100 |
| commit | 014704e6f54189a203cc14c7c0bb411b940241bc (patch) | |
| tree | 5e1a5e8e79294eab51e9cc2d5f54bfcb76c85f89 /arch/powerpc/platforms | |
| parent | 6233b6da0c00a9768bdab1c502115b960929889a (diff) | |
| download | blackbird-obmc-linux-014704e6f54189a203cc14c7c0bb411b940241bc.tar.gz blackbird-obmc-linux-014704e6f54189a203cc14c7c0bb411b940241bc.zip | |
powerpc: Fix signedness bug in update_flash_db()
The "count < sizeof(struct os_area_db)" comparison is type promoted to
size_t so negative values of "count" are treated as very high values
and we accidentally return success instead of a negative error code.
This doesn't really change runtime much but it fixes a static checker
warning.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/ps3/os-area.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/ps3/os-area.c b/arch/powerpc/platforms/ps3/os-area.c index cdbfc5cfd6f3..f5387ad82279 100644 --- a/arch/powerpc/platforms/ps3/os-area.c +++ b/arch/powerpc/platforms/ps3/os-area.c @@ -664,7 +664,7 @@ static int update_flash_db(void) db_set_64(db, &os_area_db_id_rtc_diff, saved_params.rtc_diff); count = os_area_flash_write(db, sizeof(struct os_area_db), pos); - if (count < sizeof(struct os_area_db)) { + if (count < 0 || count < sizeof(struct os_area_db)) { pr_debug("%s: os_area_flash_write failed %zd\n", __func__, count); error = count < 0 ? count : -EIO; |
