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5b11ebedd6
Function get_zeroed_page() returns a NULL pointer if there is no enough memory. In function extcon_sync(), it returns 0 if the call to get_zeroed_page() fails. The return value 0 indicates success in the context, which is incosistent with the execution status. This patch fixes the bug by returning -ENOMEM. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188611 Signed-off-by: Pan Bian <bianpan2016@163.com> Fixes: a580982f0836e Cc: stable <stable@vger.kernel.org> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>