Differential D56452

linuxkpi: Passing a size of zero to `krealloc()` frees the pointer
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Authored by dumbbell on Apr 16 2026, 9:17 PM.

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rG2434fcfd0dd0: linuxkpi: Passing a size of zero to `krealloc()` frees the pointer

Summary

This matches the API on Linux.

This is part of the update of DRM drivers to Linux 6.12.

Sponsored by: The FreeBSD Foundation

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rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

dumbbell created this revision.Apr 16 2026, 9:17 PM

Herald added subscribers: emaste, imp. · View Herald TranscriptApr 16 2026, 9:17 PM

dumbbell requested review of this revision.Apr 16 2026, 9:17 PM

dumbbell added a parent revision: D56451: linuxkpi: Pass a `const void *` to `krealloc()`.Apr 16 2026, 9:31 PM

dumbbell added a child revision: D56453: linuxkpi: Add Linux 6.12 variant of `kvrealloc()`.

bz accepted this revision.Apr 20 2026, 11:04 PM

This revision is now accepted and ready to land.Apr 20 2026, 11:04 PM

Closed by commit rG2434fcfd0dd0: linuxkpi: Passing a size of zero to `krealloc()` frees the pointer (authored by dumbbell). · Explain WhyApr 21 2026, 10:27 PM

This revision was automatically updated to reflect the committed changes.

dumbbell added a commit: rG2434fcfd0dd0: linuxkpi: Passing a size of zero to `krealloc()` frees the pointer.

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sys/

compat/

linuxkpi/

common/

src/

5 lines

Diff 176040

sys/compat/linuxkpi/common/src/linux_slab.c

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