drm/xe: Add fault injection for xe_oa_alloc_regs

nakshatragoyal · hghimira · commit 6fe653f82402 · 2025-03-26T15:11:19.000+05:30
Add fault injection for xe_oa_alloc_regs to allow it to fail while executing xe_oa_add_config_ioctl(). This need to be added as it cannot be reached by injecting error through IOCTL arguments. Signed-off-by: Nakshtra Goyal <nakshtra.goyal@intel.com> Reviewed-by: Francois Dugast <francois.dugast@intel.com> Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Link: https://lore.kernel.org/r/20250227102339.2859726-1-nakshtra.goyal@intel.com Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
diff --git a/drivers/gpu/drm/xe/xe_oa.c b/drivers/gpu/drm/xe/xe_oa.c
@@ -2221,6 +2221,7 @@ xe_oa_alloc_regs(struct xe_oa *oa, bool (*is_valid)(struct xe_oa *oa, u32 addr),
 	kfree(oa_regs);
 	return ERR_PTR(err);
 }
+ALLOW_ERROR_INJECTION(xe_oa_alloc_regs, ERRNO);
 
 static ssize_t show_dynamic_id(struct kobject *kobj,
 			       struct kobj_attribute *attr,

Original file line number	Diff line number	Diff line change
`@@ -2221,6 +2221,7 @@ xe_oa_alloc_regs(struct xe_oa oa, bool (is_valid)(struct xe_oa *oa, u32 addr),`
`2221`	`2221`	`kfree(oa_regs);`
`2222`	`2222`	`return ERR_PTR(err);`
`2223`	`2223`	`}`
	`2224`	`+ALLOW_ERROR_INJECTION(xe_oa_alloc_regs, ERRNO);`
`2224`	`2225`
`2225`	`2226`	`static ssize_t show_dynamic_id(struct kobject *kobj,`
`2226`	`2227`	`struct kobj_attribute *attr,`