| commit | f037c694630306a0a70bb922411119fe7bd9a5d9 | |
| author | Dan Carpenter <dan.carpenter@oracle.com> | |
| Fri, 11 Oct 2013 07:54:10 +0000 (11 10:54 +0300) | ||
| committer | Dan Carpenter <dan.carpenter@oracle.com> | |
| Fri, 11 Oct 2013 07:54:10 +0000 (11 10:54 +0300) | ||
| tree | 583e9065b263c446656455d7a9abf1aad994c876 | treesnapshot (tar.gz zip) |
| parent | e341cd0c8a0e8275f42c4abb24076c976d2126e0 | commitdiff |
smatch_clear_buffer: memcpy() should set the destination to unknown
In the original code "memcpy(foo, bar, sizeof(foo))" was equivalent to
"foo.a = foo.a; foo.b = foo.b;". Most of the time foo starts as
uninitialized so it's not a problem, but if it's initialized that doesn't
work.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
In the original code "memcpy(foo, bar, sizeof(foo))" was equivalent to
"foo.a = foo.a; foo.b = foo.b;". Most of the time foo starts as
uninitialized so it's not a problem, but if it's initialized that doesn't
work.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
| smatch_clear_buffer.c | diffblobblamehistory | |
| smatch_expressions.c | diffblobblamehistory | |
| smatch_extra.h | diffblobblamehistory |