Date: Fri, 9 Aug 2013 03:24:49 +0000 (UTC) From: Jeff Roberson <jeff@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r254121 - head/sys/ofed/include/linux Message-ID: <201308090324.r793OnXc005865@svn.freebsd.org>
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Author: jeff Date: Fri Aug 9 03:24:48 2013 New Revision: 254121 URL: http://svnweb.freebsd.org/changeset/base/254121 Log: - Correctly handle various edge cases in sysfs emulation. Sponsored by: EMC / Isilon Storage Division Modified: head/sys/ofed/include/linux/sysfs.h Modified: head/sys/ofed/include/linux/sysfs.h ============================================================================== --- head/sys/ofed/include/linux/sysfs.h Fri Aug 9 03:24:12 2013 (r254120) +++ head/sys/ofed/include/linux/sysfs.h Fri Aug 9 03:24:48 2013 (r254121) @@ -97,11 +97,14 @@ sysctl_handle_attr(SYSCTL_HANDLER_ARGS) error = -len; if (error != EIO) goto out; + buf[0] = '\0'; + } else if (len) { + len--; + if (len >= PAGE_SIZE) + len = PAGE_SIZE - 1; + /* Trim trailing newline. */ + buf[len] = '\0'; } - - /* Trim trailing newline. */ - len--; - buf[len] = '\0'; } /* Leave one trailing byte to append a newline. */
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