i915: fix memory leaks x3
What does this MR do and why?
i915: fix slab_create() related memory leaks
For instance, this issue is triggered with "piglit/bin/fcc-blit-between-clears -auto -fbo":
Direct leak of 836 byte(s) in 1 object(s) allocated from:
#0 0xb71eb6f2 in malloc (/usr/lib/libasan.so.6+0xb26f2)
#1 0xaefadc78 in slab_add_new_page ../src/util/slab.c:179
#2 0xaefadc78 in slab_alloc ../src/util/slab.c:221
#3 0xaef7d461 in i915_texture_transfer_map ../src/gallium/drivers/i915/i915_resource_texture.c:789
#4 0xac9e931e in pipe_texture_map ../src/gallium/auxiliary/util/u_inlines.h:555
#5 0xac9e931e in _mesa_map_renderbuffer ../src/mesa/main/renderbuffer.c:494
#6 0xad49c5e4 in readpixels_memcpy ../src/mesa/main/readpix.c:260
#7 0xad49c5e4 in _mesa_readpixels ../src/mesa/main/readpix.c:898
#8 0xad5d8cfe in st_ReadPixels ../src/mesa/state_tracker/st_cb_readpixels.c:568
#9 0xad4a0caf in read_pixels ../src/mesa/main/readpix.c:1199
#10 0xad4a0caf in _mesa_ReadnPixelsARB ../src/mesa/main/readpix.c:1216
#11 0xad4a155b in _mesa_ReadPixels ../src/mesa/main/readpix.c:1231
or "piglit/bin/fcc-read-to-pbo-after-clear -auto":
Direct leak of 772 byte(s) in 1 object(s) allocated from:
#0 0xb726b6f2 in malloc (/usr/lib/libasan.so.6+0xb26f2)
#1 0xaf0adc88 in slab_add_new_page ../src/util/slab.c:179
#2 0xaf0adc88 in slab_alloc ../src/util/slab.c:221
#3 0xaf07aad7 in i915_buffer_transfer_map ../src/gallium/drivers/i915/i915_resource_buffer.c:75
#4 0xad10de74 in pipe_buffer_map_range ../src/gallium/auxiliary/util/u_inlines.h:398
#5 0xad10de74 in _mesa_bufferobj_map_range ../src/mesa/main/bufferobj.c:499
#6 0xad5677ce in _mesa_map_pbo_dest ../src/mesa/main/pbo.c:308
#7 0xad59be3b in _mesa_readpixels ../src/mesa/main/readpix.c:894
#8 0xad6d8cfe in st_ReadPixels ../src/mesa/state_tracker/st_cb_readpixels.c:568
#9 0xad5a0caf in read_pixels ../src/mesa/main/readpix.c:1199
#10 0xad5a0caf in _mesa_ReadnPixelsARB ../src/mesa/main/readpix.c:1216
#11 0xad5a155b in _mesa_ReadPixels ../src/mesa/main/readpix.c:1231
Fixes: e7a73b75a0db ("gallium: switch drivers to the slab allocator in src/util")
Signed-off-by: Patrick Lerda <patrick9876@free.fr>
i915: fix nir_to_tgsi() related memory leak
i915: fix draw_create_fragment_shader() related memory leak