renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-22 12:14:01 +08:00
Code

[POWERPC] mpic_u3msi: Failed allocation unnoticed

Browse Source 
bitmap_find_free_region(), called by mpic_msi_alloc_hwirqs() may return
signed, but hwirq is unsigned.  A failed allocation remains unnoticed.

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Roel Kluin 2008-04-24 09:03:02 +10:00 committed by Paul Mackerras
parent ee1a08f963
commit 9d5f525b86
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/powerpc/sysdev/mpic_u3msi.c
View File

@ -115,17 +115,19 @@ static int u3msi_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
struct msi_desc *entry;
struct msi_msg msg;
u64 addr;
int ret;
addr = find_ht_magic_addr(pdev);
msg.address_lo = addr & 0xFFFFFFFF;
msg.address_hi = addr >> 32;
list_for_each_entry(entry, &pdev->msi_list, list) {
hwirq = mpic_msi_alloc_hwirqs(msi_mpic, 1);
if (hwirq < 0) {
ret = mpic_msi_alloc_hwirqs(msi_mpic, 1);
if (ret < 0) {
pr_debug("u3msi: failed allocating hwirq\n");
return hwirq;
return ret;
}
hwirq = ret;
virq = irq_create_mapping(msi_mpic->irqhost, hwirq);
if (virq == NO_IRQ) {