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3 Commits

Author SHA1 Message Date
Sebastian Ott f0483044c1 s390/pci: fix possible information leak in mmio syscall 
Make sure that even in error situations we do not use copy_to_user
on uninitialized kernel memory.

Cc: stable@vger.kernel.org # 3.19+
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 2015-02-26 09:24:48 +01:00
Heiko Carstens eba8452525 s390/pci: add missing address space annotation 
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
 2015-01-08 10:02:47 +01:00
Alexey Ishchuk 4eafad7feb s390/kernel: add system calls for PCI memory access 
Add the new __NR_s390_pci_mmio_write and __NR_s390_pci_mmio_read
system calls to allow user space applications to access device PCI I/O
memory pages on s390x platform.

[ Martin Schwidefsky: some code beautification ]

Signed-off-by: Alexey Ishchuk <aishchuk@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 2014-11-19 09:46:43 +01:00