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path: root/drivers/misc/sgi-gru/grufile.c
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Diffstat (limited to 'drivers/misc/sgi-gru/grufile.c')
-rw-r--r--drivers/misc/sgi-gru/grufile.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index 23c91f5f6b61..5c027b6b4e5a 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -113,7 +113,7 @@ static int gru_file_mmap(struct file *file, struct vm_area_struct *vma)
return -EPERM;
if (vma->vm_start & (GRU_GSEG_PAGESIZE - 1) ||
- vma->vm_end & (GRU_GSEG_PAGESIZE - 1))
+ vma->vm_end & (GRU_GSEG_PAGESIZE - 1))
return -EINVAL;
vma->vm_flags |=
@@ -398,6 +398,12 @@ static int __init gru_init(void)
irq = get_base_irq();
for (chip = 0; chip < GRU_CHIPLETS_PER_BLADE; chip++) {
ret = request_irq(irq + chip, gru_intr, 0, id, NULL);
+ /* TODO: fix irq handling on x86. For now ignore failures because
+ * interrupts are not required & not yet fully supported */
+ if (ret) {
+ printk("!!!WARNING: GRU ignoring request failure!!!\n");
+ ret = 0;
+ }
if (ret) {
printk(KERN_ERR "%s: request_irq failed\n",
GRU_DRIVER_ID_STR);
@@ -445,6 +451,9 @@ static void __exit gru_exit(void)
int order = get_order(sizeof(struct gru_state) *
GRU_CHIPLETS_PER_BLADE);
+ if (!IS_UV())
+ return;
+
for (i = 0; i < GRU_CHIPLETS_PER_BLADE; i++)
free_irq(IRQ_GRU + i, NULL);