diff options
| author | Mikulas Patocka <mpatocka@redhat.com> | 2009-05-26 16:00:12 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-06-11 20:01:14 -0700 |
| commit | ccfc46013757a25fb2002ede397a2702f50a612e (patch) | |
| tree | f0701d61838444f279722177ebedaa6bede4e6dd /arch | |
| parent | ed787bfcb9675350fa78413773a62cb797faf113 (diff) | |
sparc64: Fix crash with /proc/iomem
[ Upstream commit 192d7a4667c6d11d1a174ec4cad9a3c5d5f9043c ]
When you compile kernel on Sparc64 with heap memory checking and type
"cat /proc/iomem", you get a crash, because pointers in struct
resource are uninitialized.
Most code fills struct resource with zeros, so I assume that it is
responsibility of the caller of request_resource to initialized it,
not the responsibility of request_resource functuion.
After 2.6.29 is out, there could be a check for uninitialized fields
added to request_resource to avoid crashes like this.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc64/kernel/pci_common.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc64/kernel/pci_common.c b/arch/sparc64/kernel/pci_common.c index 09a5ec200c6..d498c606b58 100644 --- a/arch/sparc64/kernel/pci_common.c +++ b/arch/sparc64/kernel/pci_common.c @@ -368,7 +368,7 @@ static void pci_register_iommu_region(struct pci_pbm_info *pbm) const u32 *vdma = of_get_property(pbm->prom_node, "virtual-dma", NULL); if (vdma) { - struct resource *rp = kmalloc(sizeof(*rp), GFP_KERNEL); + struct resource *rp = kzalloc(sizeof(*rp), GFP_KERNEL); if (!rp) { prom_printf("Cannot allocate IOMMU resource.\n"); |