#include #include "strbuf.h" #include "quote.h" #include "util.h" /* Help to copy the thing properly quoted for the shell safety. * any single quote is replaced with '\'', any exclamation point * is replaced with '\!', and the whole thing is enclosed in a * * E.g. * original sq_quote result * name ==> name ==> 'name' * a b ==> a b ==> 'a b' * a'b ==> a'\''b ==> 'a'\''b' * a!b ==> a'\!'b ==> 'a'\!'b' */ static inline int need_bs_quote(char c) { return (c == '\'' || c == '!'); } static int sq_quote_buf(struct strbuf *dst, const char *src) { char *to_free = NULL; int ret; if (dst->buf == src) to_free = strbuf_detach(dst, NULL); ret = strbuf_addch(dst, '\''); while (!ret && *src) { size_t len = strcspn(src, "'!"); ret = strbuf_add(dst, src, len); src += len; while (!ret && need_bs_quote(*src)) ret = strbuf_addf(dst, "'\\%c\'", *src++); } if (!ret) ret = strbuf_addch(dst, '\''); free(to_free); return ret; } int sq_quote_argv(struct strbuf *dst, const char** argv, size_t maxlen) { int i, ret; /* Copy into destination buffer. */ ret = strbuf_grow(dst, 255); for (i = 0; !ret && argv[i]; ++i) { ret = strbuf_addch(dst, ' '); if (ret) break; ret = sq_quote_buf(dst, argv[i]); if (maxlen && dst->len > maxlen) return -ENOSPC; } return ret; } ck net-next plumbingsTobias Klauser
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authorDaniel Vetter <daniel.vetter@ffwll.ch>2017-01-12 17:15:56 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2017-01-30 10:17:32 +0100
commite6e7b48b295afa5a5ab440de0a94d9ad8b3ce2d0 (patch)
tree77cadb6d8aad1b52c34e4afa8c9deef603bbe2ed /sound/soc/codecs/wm8997.h
parent4e5b54f127426c82dc2816340c26d951a5bb3429 (diff)
drm: Don't race connector registration
I was under the misconception that the sysfs dev stuff can be fully set up, and then registered all in one step with device_add. That's true for properties and property groups, but not for parents and child devices. Those must be fully registered before you can register a child. Add a bit of tracking to make sure that asynchronous mst connector hotplugging gets this right. For consistency we rely upon the implicit barriers of the connector->mutex, which is taken anyway, to ensure that at least either the connector or device registration call will work out. Mildly tested since I can't reliably reproduce this on my mst box here. Reported-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1484237756-2720-1-git-send-email-daniel.vetter@ffwll.ch
Diffstat (limited to 'sound/soc/codecs/wm8997.h')