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Fri, 11 Aug 2023 14:30:58 -0700 (PDT) From: Glenn Washburn To: grub-devel@gnu.org, Daniel Kiper Cc: Glenn Washburn Subject: [PATCH] commands/videoinfo: Prevent crash when run while video driver already active Date: Fri, 11 Aug 2023 16:30:04 -0500 Message-Id: <20230811213004.1646496-1-development@efficientek.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::a2c; envelope-from=development@efficientek.com; helo=mail-vk1-xa2c.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: The development of GNU GRUB Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: grub-devel-bounces+grub-devel=archiver.kernel.org@gnu.org Sender: grub-devel-bounces+grub-devel=archiver.kernel.org@gnu.org VGhlIHZpZGVvaW5mbyBjb21tYW5kIHdpbGwgaW5pdGlhbGl6ZSBhbGwgbm9uLWFjdGl2ZSB2aWRl byBhZGFwdGVycy4gVmlkZW8KZHJpdmVycyB0ZW5kIHRvIHplcm8gb3V0IHRoZSBnbG9iYWwgZnJh bWVidWZmZXIgb2JqZWN0IG9uIGluaXRpYWxpemF0aW9uLgpUaGlzIGlzIG5vdCBhIHByb2JsZW0g d2hlbiB0aGVyZSBpcyBubyBhY3RpdmUgdmlkZW8gYWRhcHRlci4gSG93ZXZlciwgd2hlbgp0aGVy ZSBpcywgdGhlbiBvdXRwdXR0aW5nIHRvIHRoZSB2aWRlbyBhZGFwdGVyIHdpbGwgY2F1c2UgYSBj cmFzaCBiZWNhdXNlCm1ldGhvZHMgaW4gdGhlIGZyYW1lYnVmZmVyIG9iamVjdCBhcmUgcmVpbml0 aWFsaXplZC4gRm9yIGV4YW1wbGUsIHRoaXMKY29tYW5kIHNlcXVlbmNlIHdpbGwgY2F1c2UgYSBj cmFzaC4KCiAgdGVybWluYWxfb3V0cHV0IC0tYXBwZW5kIGdmeHRlcm07IHZpZGVvaW5mbwoKV2hl biBydW5uaW5nIGluIGEgUUVNVSBoZWFkbGVzcyB3aXRoIEdSVUIgYnVpbHQgZm9yIHRoZSB4ODZf NjQtZWZpIHRhcmdldCwKdGhlIGZpcnN0IGNvbW1hbmQgaW5pdGlhbGl6ZXMgdGhlIEJvY2hzIHZp ZGVvIGFkYXB0ZXIsIHdoaWNoLCBhbW9uZwpvdGhlciB0aGluZ3MsIHNldHMgdGhlIHNldF9wYWdl KCkgbWVtYmVyIGZ1bmN0aW9uLiBUaGVuIHdoZW4gdmlkZW9pbmZvIGlzCnJ1biwgYWxsIG5vbi1C b2NocyB2aWRlbyBhZGFwdGVycyB3aWxsIGJlIGluaXRpYWxpemVkLCBlYWNoIG9uZSB3aXBpbmcK dGhlIGZyYW1lYnVmZmVyIGFuZCB0aHVzIHNldHRpbmcgc2V0X3BhZ2UgdG8gTlVMTC4gU29vbiBh ZnRlciB0aGUgdmlkZW9pbmZvCmNvbW1hbmQgZmluaXNoZXMgdGhlcmUgd2lsbCBiZSBhIGNhbGwg dG8gZ3J1Yl9yZWZyZXNoKCksIHdoaWNoIHdpbGwKdWx0aW1hdGVseSBjYWxsIHRoZSBmcmFtZWJ1 ZmZlcidzIHNldF9wYWdlIHdoaWNoIHdpbGwgYmUgTlVMTCBhbmQgY2F1c2UKYSBjcmFzaCB3aGVu IGNhbGxlZC4KClNpZ25lZC1vZmYtYnk6IEdsZW5uIFdhc2hidXJuIDxkZXZlbG9wbWVudEBlZmZp Y2llbnRlay5jb20+Ci0tLQogZ3J1Yi1jb3JlL2NvbW1hbmRzL3ZpZGVvaW5mby5jIHwgNSArKysr KwogMSBmaWxlIGNoYW5nZWQsIDUgaW5zZXJ0aW9ucygrKQoKZGlmZiAtLWdpdCBhL2dydWItY29y ZS9jb21tYW5kcy92aWRlb2luZm8uYyBiL2dydWItY29yZS9jb21tYW5kcy92aWRlb2luZm8uYwpp bmRleCA1ZWI5Njk3NDhiMGUuLjIwNWJhNzhjOWY3YiAxMDA2NDQKLS0tIGEvZ3J1Yi1jb3JlL2Nv bW1hbmRzL3ZpZGVvaW5mby5jCisrKyBiL2dydWItY29yZS9jb21tYW5kcy92aWRlb2luZm8uYwpA QCAtMTkxLDYgKzE5MSwxMSBAQCBncnViX2NtZF92aWRlb2luZm8gKGdydWJfY29tbWFuZF90IGNt ZCBfX2F0dHJpYnV0ZV9fICgodW51c2VkKSksCiAJICAvKiBEb24ndCB3b3JyeSBhYm91dCBlcnJv cnMuICAqLwogCSAgZ3J1Yl9lcnJubyA9IEdSVUJfRVJSX05PTkU7CiAgICAgICB9CisgICAgZWxz ZSBpZiAoaWQgIT0gR1JVQl9WSURFT19EUklWRVJfTk9ORSkKKyAgICAgIHsKKwlncnViX3B1dHNf IChOXygiICBBIHZpZGVvIGRyaXZlciBpcyBhY3RpdmUsIGNhbm5vdCBpbml0aWFsaXplIHRoaXMg ZHJpdmVyIHVudGlsIGl0IGlzIGRlYWN0aXZhdGVkXG4iKSk7CisJY29udGludWU7CisgICAgICB9 CiAgICAgZWxzZQogICAgICAgewogCWlmIChhZGFwdGVyLT5pbml0ICgpKQotLSAKMi4zNC4xCgoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KR3J1Yi1kZXZl bCBtYWlsaW5nIGxpc3QKR3J1Yi1kZXZlbEBnbnUub3JnCmh0dHBzOi8vbGlzdHMuZ251Lm9yZy9t YWlsbWFuL2xpc3RpbmZvL2dydWItZGV2ZWwK