drm/i915: Call i915_globals_exit() if pci_register_device() fails

In the unlikely event that pci_register_device() fails, we were tearing
down our PMU setup but not globals.  This leaves a bunch of memory slabs
lying around.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Fixes: 32eb6bcfdda9 ("drm/i915: Make request allocation caches global")
[danvet: Fix conflicts against removal of the globals_flush
infrastructure.]
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210721152358.2893314-3-jason@jlekstrand.net
(cherry picked from commit db484889d1ff0645e07e360d3e3ad306c0515821)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[Fixed small conflict while cherry picking]

diff --git a/drivers/gpu/drm/i915/i915_globals.c b/drivers/gpu/drm/i915/i915_globals.c
index 77f1911..2db90e7 100644 (file)
--- a/drivers/gpu/drm/i915/i915_globals.c
+++ b/drivers/gpu/drm/i915/i915_globals.c
@@ -148,7 +148,7 @@ static void __exit __i915_globals_flush(void)
        atomic_dec(&active);
 }
 
-void __exit i915_globals_exit(void)
+void i915_globals_exit(void)
 {
        GEM_BUG_ON(atomic_read(&active));
 

diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 83b500b..2880ec5 100644 (file)
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -1195,6 +1195,7 @@ static int __init i915_init(void)
        err = pci_register_driver(&i915_pci_driver);
        if (err) {
                i915_pmu_exit();
+               i915_globals_exit();
                return err;
        }