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| author |   Sven Schnelle <svens@linux.ibm.com> | 2022-05-03 09:58:33 +0200 |
|---|---|---|
| committer |   Heiko Carstens <hca@linux.ibm.com> | 2022-05-11 14:40:57 +0200 |
| commit | 5ace65ebb5ce9fe1cc8fdbdd97079fb566ef0ea4 (patch) | |
| tree | f40939cdc8e4c16a646cef349c46e49bc5e219e4 /drivers/s390/cio | |
| parent | s390/stp: fix todoff size (diff) | |
| download | linux-dev-5ace65ebb5ce9fe1cc8fdbdd97079fb566ef0ea4.tar.xz linux-dev-5ace65ebb5ce9fe1cc8fdbdd97079fb566ef0ea4.zip | |
s390/stp: clock_delta should be signed
clock_delta is declared as unsigned long in various places. However,
the clock sync delta can be negative. This would add a huge positive
offset in clock_sync_global where clock_delta is added to clk.eitod
which is a 72 bit integer. Declare it as signed long to fix this.
Cc: stable@vger.kernel.org
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'drivers/s390/cio')
| -rw-r--r-- | drivers/s390/cio/chsc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 297fb399363c..620a917cd3a1 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -1255,7 +1255,7 @@ exit: EXPORT_SYMBOL_GPL(css_general_characteristics); EXPORT_SYMBOL_GPL(css_chsc_characteristics); -int chsc_sstpc(void *page, unsigned int op, u16 ctrl, u64 *clock_delta) +int chsc_sstpc(void *page, unsigned int op, u16 ctrl, long *clock_delta) { struct { struct chsc_header request; @@ -1266,7 +1266,7 @@ int chsc_sstpc(void *page, unsigned int op, u16 ctrl, u64 *clock_delta) unsigned int rsvd2[5]; struct chsc_header response; unsigned int rsvd3[3]; - u64 clock_delta; + s64 clock_delta; unsigned int rsvd4[2]; } *rr; int rc; |