From: Eric Anholt Date: Fri, 17 Oct 2008 21:41:03 +0000 (-0700) Subject: i915: Don't dereference HWS in /proc debug files when it isn't initialized. X-Git-Tag: v2.6.28-rc1~28^2~5 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=a2d44cca4fc9ae04ed2c9fc2ef16b6989eeae218;p=~shefty%2Frdma-dev.git i915: Don't dereference HWS in /proc debug files when it isn't initialized. Signed-off-by: Eric Anholt Acked-by: Keith Packard Signed-off-by: Dave Airlie --- diff --git a/drivers/gpu/drm/i915/i915_gem_proc.c b/drivers/gpu/drm/i915/i915_gem_proc.c index 15d4160415b..93de15b4c9a 100644 --- a/drivers/gpu/drm/i915/i915_gem_proc.c +++ b/drivers/gpu/drm/i915/i915_gem_proc.c @@ -192,7 +192,12 @@ static int i915_gem_seqno_info(char *buf, char **start, off_t offset, *start = &buf[offset]; *eof = 0; - DRM_PROC_PRINT("Current sequence: %d\n", i915_get_gem_seqno(dev)); + if (dev_priv->hw_status_page != NULL) { + DRM_PROC_PRINT("Current sequence: %d\n", + i915_get_gem_seqno(dev)); + } else { + DRM_PROC_PRINT("Current sequence: hws uninitialized\n"); + } DRM_PROC_PRINT("Waiter sequence: %d\n", dev_priv->mm.waiting_gem_seqno); DRM_PROC_PRINT("IRQ sequence: %d\n", dev_priv->mm.irq_gem_seqno); @@ -230,8 +235,12 @@ static int i915_interrupt_info(char *buf, char **start, off_t offset, I915_READ(PIPEBSTAT)); DRM_PROC_PRINT("Interrupts received: %d\n", atomic_read(&dev_priv->irq_received)); - DRM_PROC_PRINT("Current sequence: %d\n", - i915_get_gem_seqno(dev)); + if (dev_priv->hw_status_page != NULL) { + DRM_PROC_PRINT("Current sequence: %d\n", + i915_get_gem_seqno(dev)); + } else { + DRM_PROC_PRINT("Current sequence: hws uninitialized\n"); + } DRM_PROC_PRINT("Waiter sequence: %d\n", dev_priv->mm.waiting_gem_seqno); DRM_PROC_PRINT("IRQ sequence: %d\n",