[PATCH] libio: Free backup area when it not required (BZ#22415)

[Andreas Schwab]

On Nov 29 2017, Adhemerval Zanella <adhemerval.zanella@linaro.org> wrote:

> 	* libio/Makefile (tests): Add tst-bz22415.
> 	(tst-bz22415-ENV): New rule.
> 	(generated): Add tst-bz22415.mtrace and tst-bz22415.check.
> 	(tests-special): Add tst-bz22415-mem.out.
> 	($(objpfx)tst-bz22415-mem.out): New rule.
> 	* libio/fileops.c (_IO_new_file_seekoff): Call _IO_free_backup_area
> 	in case of a successful seek operation.
> 	* libio/wfileops.c (_IO_wfile_seekoff): Likewise.
> 	(_IO_wfile_overflow): Call _IO_free_wbackup_area in case a write
> 	buffer is required.
> 	* libio/tst-bz22415.c: New test.

Ok.

Andreas.

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Andreas Schwab, SUSE Labs, schwab@suse.de
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