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| author |   Sebastian Ott <sebott@linux.vnet.ibm.com> | 2013-04-16 14:16:14 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-04-17 14:07:37 +0200 |
| commit | f0bacb7fc4f7defb15a6575d92f8ea4342f8f09e (patch) | |
| tree | f8e029110696a0cb846357a2b1e267015ec37e62 /arch/s390/include/asm/pci_io.h | |
| parent | s390/pci: rename instruction wrappers (diff) | |
| download | linux-dev-f0bacb7fc4f7defb15a6575d92f8ea4342f8f09e.tar.xz linux-dev-f0bacb7fc4f7defb15a6575d92f8ea4342f8f09e.zip | |
s390/pci: add exception table to load/store instructions
Don't let pci_load and friends crash the kernel when called with
e.g. an invalid offset. Return -ENXIO instead.
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/pci_io.h')
| -rw-r--r-- | arch/s390/include/asm/pci_io.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h index a312c7e5a71e..0e0bec9a3fb7 100644 --- a/arch/s390/include/asm/pci_io.h +++ b/arch/s390/include/asm/pci_io.h @@ -89,7 +89,7 @@ static inline int zpci_write_single(u64 req, const u64 *data, u64 offset, u8 len static inline int zpci_read_single(u64 req, u64 *dst, u64 offset, u8 len) { u64 data; - u8 cc; + int cc; cc = s390pci_load(&data, req, offset); switch (len) { |