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Driver core fixes for 4.0-rc5

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Here are two bugfixes for things reported.  One regression in kernfs,
 and another issue fixed in the LZ4 code that was fixed in the "upstream"
 codebase that solves a reported kernel crash.
 
 Both have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here are two bugfixes for things reported.  One regression in kernfs,
  and another issue fixed in the LZ4 code that was fixed in the
  "upstream" codebase that solves a reported kernel crash

  Both have been in linux-next for a while"

* tag 'driver-core-4.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  LZ4 : fix the data abort issue
  kernfs: handle poll correctly on 'direct_read' files.
This commit is contained in:
Linus Torvalds 2015-03-22 12:07:47 -07:00
commit 4541c22605
2 changed files with 4 additions and 0 deletions
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1
fs/kernfs/file.c
View File

@ -207,6 +207,7 @@ static ssize_t kernfs_file_direct_read(struct kernfs_open_file *of,
goto out_free;
}
of->event = atomic_read(&of->kn->attr.open->event);
ops = kernfs_ops(of->kn);
if (ops->read)
len = ops->read(of, buf, len, *ppos);

3
lib/lz4/lz4_decompress.c
View File

@ -139,6 +139,9 @@ static int lz4_uncompress(const char *source, char *dest, int osize)
/* Error: request to write beyond destination buffer */
if (cpy > oend)
goto _output_error;
if ((ref + COPYLENGTH) > oend ||
(op + COPYLENGTH) > oend)
goto _output_error;
LZ4_SECURECOPY(ref, op, (oend - COPYLENGTH));
while (op < cpy)
*op++ = *ref++;