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| author | Jiri Kosina <jkosina@suse.cz> | 2012-08-01 21:10:51 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-28 10:02:13 -0700 |
| commit | 6c2bbdc7f87008e15161cb5cbbb49c1292e906e2 (patch) | |
| tree | 108232b2aacb4cd3aa6a6673c49648c97bf6abea /drivers | |
| parent | 7583ffeee9912de7313b9e3d75b5c9304c664e54 (diff) | |
| download | kernel_samsung_smdk4412-6c2bbdc7f87008e15161cb5cbbb49c1292e906e2.zip kernel_samsung_smdk4412-6c2bbdc7f87008e15161cb5cbbb49c1292e906e2.tar.gz kernel_samsung_smdk4412-6c2bbdc7f87008e15161cb5cbbb49c1292e906e2.tar.bz2 | |
sparc64: do not clobber personality flags in sys_sparc64_personality()
[ Upstream commit a27032eee8cb6e16516f13c8a9752e9d5d4cc430 ]
There are multiple errors in how sys_sparc64_personality() handles
personality flags stored in top three bytes.
- directly comparing current->personality against PER_LINUX32 doesn't work
in cases when any of the personality flags stored in the top three bytes
are used.
- directly forcefully setting personality to PER_LINUX32 or PER_LINUX
discards any flags stored in the top three bytes
Fix the first one by properly using personality() macro to compare only
PER_MASK bytes.
Fix the second one by setting only the bits that should be set, instead of
overwriting the whole value.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions